Article
Materials Science, Multidisciplinary
J. L. Wormald, A. I. Hawari
Summary: In fission-based nuclear reactors, the interaction between fission fragments and electronic excitations leads to thermalization and the formation of high temperature thermal spikes. This promotes atomic mobility and lattice defects formation. A multigroup model for electron energy transport is developed to simulate fission energy deposition in nuclear fuel. The results show reasonable agreement with experimental trends and provide insights into fission effects.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Engineering, Multidisciplinary
Qi Liu, Bin Yu, Augusto Cannone Falchetto, Di Wang, Jinzhou Liu, Wu Bo
Summary: This study investigates the aging differences of asphalt films in the vertical aggregate direction using a three-layers model and verifies the simulated findings through experiments. The diffusion of oxygen and distribution of four components are found to be more sensitive to pressure. There are significant differences in aging grade and component content of asphalt membranes at different thicknesses, and the combined effects of component volatilization, oxidation reactions, and component migration can lead to changes in the modulus gradient of the asphalt films.
Article
Materials Science, Multidisciplinary
Alexander Antropov, Vladimir Stegailov
Summary: In this study, molecular dynamics modeling revealed a new diffusion mechanism for xenon nanobubbles in UO2, which could potentially explain the contradictory data on bubble diffusion and fission gas release rate in UO2.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Seyed Mehrdad Zamzamian, Ahmadreza Zolfaghari, Zahra Kowsar
Summary: In this paper, atomistic simulations based on molecular dynamics (MD) were used to calculate the diffusion coefficients of xenon, uranium, and oxygen in uranium dioxide. The results showed that the diffusion coefficients were both temperature-dependent and dependent on the percentage of xenon. Three temperature and xenon percentage dependent equations for the diffusion coefficients were proposed. The simulated results were compared with experimental data, and significant agreement was obtained.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Yi Zhong, Zhenliang Yang, Qiqi Huang, Zhiyi Wang, Yun Wang, Dezhi Zhang, Tao Shi, Min Wu, Bingqing Li, Rui Gao, Mingfu Chu, Pengcheng Zhang, Bin Bai
Summary: Introducing graphite flakes (GFs) into UO2 has been shown to significantly improve thermal conductivity, especially in the radial direction. Under specific conditions, the radial thermal conductivity of GFs/UO2 composites can be greatly enhanced, with the diameter of GFs also impacting the thermal conductivity.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yanbo Jiang, Wenbo Liu, Wenjie Li, Zhengyang Sun, Yong Xin, Piheng Chen, Di Yun
Summary: A phase-field model was developed to simulate the interaction between voids and grain boundaries, capturing the evolution of grain growth and the impact of moving grain boundaries on void formation during radiation. The effects of interaction between voids and moving grain boundaries of different radii were analyzed, and the influence of moving grain boundaries on void formation during radiation was discussed in detail based on the modified phase-field model in polycrystalline uranium dioxide.
COMPUTATIONAL MATERIALS SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
X-Y Liu, D. A. Andersson
Summary: The energetics and kinetics of small uranium interstitial clusters in UO2 were studied using two interatomic potentials, revealing differences in migration mechanisms and mobility based on geometric structures of the clusters. Rapid migration of interstitials and clusters is crucial for the irradiation response of UO2 and is consistent with low migration barriers observed in historical experiments.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Simon C. Middleburgh, William E. Lee, Michael J. D. Rushton
Summary: Amorphous uranium dioxide has been modeled on the atomic scale using a combination of quantum mechanical and classical forcefield methods, revealing structures consistent with experimental patterns. Non-stoichiometry is accommodated more readily in the amorphous system, with a predicted spin-glass magnetic structure and a computed surface energy similar to grain boundary bubbles in UO2.
Article
Materials Science, Multidisciplinary
Ziqiang Wang, Miaosen Yu, Chen Yang, Xuehao Long, Ning Gao, Zhongwen Yao, Limin Dong, Xuelin Wang
Summary: This study investigated the influence of radiation defects on the thermo-mechanical properties of UO2 using molecular dynamics method, finding that Frenkel pairs and antisite defects lead to reduced thermal expansion coefficient and linear decrease in elastic modulus at finite temperatures.
Article
Materials Science, Ceramics
Marion Borde, Allan Germain, Emeric Bourasseau
Summary: In this study, molecular dynamics and CRG empirical potential were used to investigate the symmetrical tilt grain boundaries around the [001] axis in UO2. The analysis of atomic structures obtained by simulation showed excellent agreement with the Read and Schokley model, predicting the existence of regular dislocations in these grain boundaries. The study also calculated the energy of formation and cleavage of the boundaries, as well as the energy of formation of Schottky defects and incorporation of xenon and krypton atoms near the boundaries, providing insights into how these properties evolve with different misorientation angles.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
M. W. D. Cooper, K. A. Gamble, L. Capolungo, C. Matthews, D. A. Andersson, B. Beeler, C. R. Stanek, K. Metzger
Summary: U3Si2, an advanced fuel candidate with high fissile density and thermal properties, has data gaps in thermophysical and thermomechanical properties. This study used DFT and MD simulations to predict point defect concentrations under irradiation, informing a creep model based on diffusional creep and dislocation creep, which compares well with experimental data and has been implemented in a fuel performance code. Demonstrations show negligible creep in U3Si2 due to its high thermal conductivity at low reactor temperatures.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Tijo Vazhappilly, Arup Kumar Pathak
Summary: This study investigates the effect of Ce atom substitution in UO2 on its thermophysical properties using density functional theory. The results show that the Ce substitution levels and the oxidation state of Ce/U atoms strongly influence the band structure and specific heat capacity of the UO2 lattice. These findings provide important insights into the fuel properties of UO2 under reactor conditions.
JOURNAL OF NUCLEAR MATERIALS
(2024)
Article
Thermodynamics
Shixian Zeng, Rui Xue, Roozbeh Sabetvand
Summary: This study investigates the heat transfer of copper nanoparticles and ammonia refrigerant in a nanochannel using molecular dynamics simulation. The results demonstrate that increasing the electric field frequency leads to a longer phase change time and a lower thermal conductivity. The study also examines the effect of different cavities on the atomic and thermal behavior of the simulated samples, revealing that samples with cubic cavities exhibit the highest thermal conductivity.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Chemistry, Physical
Ashutosh Rajput, Surajit Kumar Paul
Summary: This study investigates the uniaxial tensile deformation and damage mechanism in single-crystal Aluminum in the presence of soft and hard inclusions. Alterations in mechanical properties were noticed, with softening observed in the presence of Magnesium and hardening in the presence of Titanium. The study provides an understanding of the governing fracture mechanism influenced by the inclusion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Thermodynamics
Danhong Li, Mustafa Z. Mahmoud, Wanich Suksatan, Maria Kuznetsova, Azher M. Abed, Maboud Hekmatifar, Davood Toghraie, Roozbeh Sabetvand
Summary: The thermal behavior of a graphene nanosheets/carbon nanotubes-water nanofluid was studied using molecular dynamics simulations. Results showed that adding carbon nanoparticles improved thermal conductivity and reduced phase change time in the simulated fluid. Increasing the dimensions of carbon nanoparticles further enhanced these effects.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Michael R. Tonks, Pierre-Clement A. Simon, Jacob Hirschhorn
Summary: This study aims to develop a mechanistic model of grain growth in UO2 fuel and validate it using experimental and simulation data, while considering the impact of porosity on grain boundaries. The model predicts more grain growth than an empirical model, attributed to its ability to account for temperature and power history.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Nuclear Science & Technology
Ian Greenquist, Michael Tonks, Yongfeng Zhang
Summary: Irradiation-enhanced densification (IED) is a form of sintering that affects the microstructure and density of ceramic nuclear fuels during reactor operation. A modified grand potential sintering model was used to describe IED, with the results consistent with experimental data. The study identified pore size, grain boundaries, and interactions between neighboring pores as key mechanisms driving IED.
ANNALS OF NUCLEAR ENERGY
(2021)
Article
Chemistry, Physical
Linyuan Shi, Marina Sessim, Michael R. Tonks, Simon R. Phillpot
Summary: A high-fidelity model of carbon fibers was developed using kinetic Monte Carlo combined with large-scale Molecular Dynamics, with the generated fiber core and thin fiber models showing similar densities and structural characteristics to experimental structures. Introducing artificial defects in the models was shown to heal during structural equilibration, resulting in Young's moduli within the experimental range.
Article
Materials Science, Multidisciplinary
Jacob Hirschhorn, Michael Tonks, Christopher Matthews
Summary: A CALPHAD-informed constituent redistribution model was developed and incorporated into the BISON fuel performance code, calibrated with three uncertain model parameters to accurately predict the behavior of U-Zr fuels. Model predictions for U-Pu-Zr fuels were less accurate, with potential improvement by reducing uncertainties in ternary phase transition temperatures and collecting more kinetic data. The new model was successfully coupled with existing thermomechanics models to accurately simulate irradiation of U-Zr fuels at the engineering scale.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Floyd W. Hilty, Dong-Uk Kim, Michael R. Tonks
Summary: This study investigates the impact of fission gas bubbles on the effective thermal conductivity (ETC) of composite nuclear fuels. The results show that fission gas bubbles may completely eliminate the benefits of high thermal conductivity additives, leading to even lower thermal conductivity than fuel without additives. A trend relating the fraction of additive screened by bubbles to the ETC is identified, and a model is proposed to predict the ETC of composite fuels with fission gas bubbles for better estimation of fuel design benefits.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Pierre-Clement A. Simon, Cailon Frank, Long-Qing Chen, Mark R. Daymond, Michael R. Tonks, Arthur T. Motta
Summary: The new metric RHCP is developed to quantify hydride microstructure and its relation to crack propagation in Zr alloy nuclear fuel cladding. Compared to previous metrics, RHCP shows a closer relationship to the propensity of crack propagation radially through the cladding thickness. By taking into account hydride length, orientation, and connectivity, RHCP can be more closely linked to hydride embrittlement of the Zr alloy material, thus creating a relationship between material structure, properties, and performance. The information provided by these metrics will help accurately assess cladding integrity during operation, transportation, and storage.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Nuclear Science & Technology
Marina Sessim, Michael R. Tonks
Summary: This study demonstrates the application of NEAMS tools for modeling NTP fuel, specifically using BISON and MARMOT to develop a multiscale thermal transport model. The effective thermal conductivity of fresh CERMET fuel is estimated using three-dimensional simulations in MARMOT, and then applied in BISON to predict the steady-state temperature profile throughout a 61-subchannel hexagonal fuel element.
NUCLEAR TECHNOLOGY
(2021)
Article
Nuclear Science & Technology
Cody J. Permann, Andrea M. Jokisaari, Michael R. Tonks, Daniel Schwen, Derek R. Gaston, Fande Kong, Robert Hiromoto, Richard R. Martineau
Summary: By exploring feature identification and dynamic remapping mechanisms, it is possible to significantly reduce the number of variables in simulations while maintaining simulation accuracy, effectively understanding and quantifying complex behaviors.
NUCLEAR TECHNOLOGY
(2021)
Article
Chemistry, Physical
Linyuan Shi, Marina Sessim, Michael R. Tonks, Simon R. Phillpot
Summary: Reactive MD simulations were used to study the initial stage of carbon fiber and amorphous carbon char oxidation with atomic oxygen. Carbon monoxide was found to be the primary product in both systems. Oxygen was adsorbed on the surfaces of both materials, with significantly higher amounts on the surface of amorphous carbon char compared to carbon fiber.
Review
Chemistry, Multidisciplinary
David H. Hurley, Anter El-Azab, Matthew S. Bryan, Michael W. D. Cooper, Cody A. Dennett, Krzysztof Gofryk, Lingfeng He, Marat Khafizov, Gerard H. Lander, Michael E. Manley, J. Matthew Mann, Chris A. Marianetti, Karl Rickert, Farida A. Selim, Michael R. Tonks, Janelle P. Wharry
Summary: Efforts to understand and control thermal transport in nuclear fuels have advanced with the introduction of new tools, although challenges remain in developing comprehensive models for predicting thermal energy transport in varying environmental conditions.
Article
Materials Science, Multidisciplinary
Marina Sessim, Linyuan Shi, Simon R. Phillpot, Michael R. Tonks
Summary: In this paper, a multiphysics mesoscale model was developed to study the oxidation of carbon fibers in a phenolic impregnated carbon ablator thermal protection system. The presented model used the phase-field method to capture the reduction of carbon fibers due to the oxidation reaction and was fully coupled with heat transport in the system. Sensitivity analysis revealed that the reaction rate parameters have the most impact on the oxidation time.
COMPUTATIONAL MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Xueyang Wu, Iman Abdallah, Wen Jiang, Robert S. Ullberg, Simon R. Phillpot, Adrien Couet, John H. Perepezko, Michael R. Tonks
Summary: An electrochemical phase-field model is used to investigate the oxidation mechanisms of the 21-2N valve stainless steel alloy exposed to carbon dioxide at 973 K. The model includes three observed oxide phases: Mn3O4, Cr2O3, and MnCr2O4. The sensitivity of oxidation processes to diffusion mobilities is examined and the oxidation rate is calibrated against experimental data. It is found that both inward oxygen and outward metal diffusion are important for oxidation, and the order of initial oxide layers impacts the diffusion of Mn.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Shuaifang Zhang, Wen Jiang, Kyle A. Gamble, Michael R. Tonks
Summary: In this study, the importance of bubble pressure on fuel fragmentation in UO2 polycrystals during LOCA accidents was investigated using 2D phase field fracture simulations. The results show that crack nucleation and propagation accelerate when unpressurized intergranular voids with a radius of 1 μm exist in the polycrystals under LOCA conditions.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Chaitanya Vivek Bhave, Guiqiu Zheng, Kumar Sridharan, Daniel Schwen, Michael R. Tonks
Summary: In this study, an electrochemical phase-field model is developed to capture the microstructure-dependent corrosion of structural alloys in molten salts. The model is validated using 1D, 2D, and 3D simulations and predicts the corrosion rate proportional to the average grain size at the alloy/salt interface.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xueyang Bognarova, Wen Jiang, Daniel Schwen, Michael R. Tonks
Summary: The Kim-Kim-Suzuki (KKS) method is a commonly used multi-phase multi-component phase-field (PF) method that decouples interfacial energy from bulk energy and solves concentration as the conserved variable. There are two approaches to numerically solving the KKS method: the global solution approach (GSA) and the local solution approach (LSA). This study compares the performance of LSA and GSA in solving four increasingly complex KKS models using the finite element method and the MOOSE framework. The results show that LSA and GSA produce similar solutions with a maximum difference of only 0.34%. LSA has fewer degrees of freedom, requires less memory, and has shorter wall time compared to GSA. The savings in memory and wall time increase with higher mesh density and are more pronounced in models with higher dimensionality and more nodes. However, GSA is easier to implement and is better suited for highly nonlinear systems with sophisticated solvers.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Y. Liu, K. Zweiacker, C. Liu, J. T. McKeown, J. M. K. Wiezorek
Summary: The evolution of rapid solidification microstructure and solidification interface velocity of hypereutectic Al-20at.%Cu alloy after laser melting has been studied experimentally. It was found that the formation of microstructure was dominated by eutectic, alpha-cell, and banded morphology grains, and the growth modes changed with increasing interface velocity.
Article
Materials Science, Multidisciplinary
Bharat Gwalani, Julian Escobar, Miao Song, Jonova Thomas, Joshua Silverstein, Andrew Chihpin Chuang, Dileep Singh, Michael P. Brady, Yukinori Yamamoto, Thomas R. Watkins, Arun Devaraj
Summary: Castable alumina forming austenitic alloys exhibit superior creep life and oxidation resistance at high temperatures. This study reveals the mechanism behind the enhanced creep performance of these alloys by suppressing primary carbide formation and offers a promising alloy design strategy for high-temperature applications.
Article
Materials Science, Multidisciplinary
Jian Song, Qi Zhang, Songsong Yao, Kunming Yang, Houyu Ma, Jiamiao Ni, Boan Zhong, Yue Liu, Jian Wang, Tongxiang Fan
Summary: Recent studies have shown that achieving an atomically flat surface for metals can greatly improve their oxidation resistance and enhance their electronic-optical applications. Researchers have explored the use of graphene as a covering layer to achieve atomically flat surfaces. They found that high-temperature deposited graphene on copper surfaces formed mono-atomic steps, while annealed copper and transferred graphene on copper interfaces formed multi-atomic steps.
Article
Materials Science, Multidisciplinary
Jennifer A. Glerum, Jon-Erik Mogonye, David C. Dunand
Summary: Elemental powders of Al, Ti, Sc, and Zr are blended and processed via laser powder-bed fusion to create binary and ternary alloys. The microstructural analysis and mechanical testing show that the addition of Ti results in the formation of primary precipitates, while the addition of Sc and Zr leads to the formation of fine grain bands. The Al-0.25Ti-0.25Zr alloy exhibits comparable strain rates to Al-0.5Zr at low stresses, but significantly higher strain rates at higher stresses during compressive creep testing. Finite element modeling suggests that the connectivity of coarse and fine grain regions is a critical factor affecting the creep resistance of the alloys.
Article
Materials Science, Multidisciplinary
P. Jannotti, B. C. Hornbuckle, J. T. Lloyd, N. Lorenzo, M. Aniska, T. L. Luckenbaugh, A. J. Roberts, A. Giri, K. A. Darling
Summary: This work characterizes the thermo-mechanical behavior of bulk nanocrystalline Cu-Ta alloys under extreme conditions. The experiments reveal that the alloys exhibit unique mechanical properties, behaving differently from conventional nanocrystalline Cu. They do not undergo grain coarsening during extrusion and exhibit behavior similar to coarse-grained Cu.
Article
Materials Science, Multidisciplinary
Yiqing Wei, Jingwei Li, Daliang Zhang, Bin Zhang, Zizhen Zhou, Guang Han, Guoyu Wang, Carmelo Prestipino, Pierric Lemoine, Emmanuel Guilmeau, Xu Lu, Xiaoyuan Zhou
Summary: This study proposes a new strategy to modify microstructure by phase regulation, which can simultaneously enhance carrier mobility and reduce lattice thermal conductivity. The addition of Cu in layered SnSe2 induces a phase transition that leads to increased grain size and reduced stacking fault density, resulting in improved carrier mobility and lower lattice thermal conductivity.
Article
Materials Science, Multidisciplinary
Jia Chen, Zhengyu Zhang, Eitan Hershkovitz, Jonathan Poplawsky, Raja Shekar Bhupal Dandu, Chang-Yu Hung, Wenbo Wang, Yi Yao, Lin Li, Hongliang Xin, Honggyu Kim, Wenjun Cai
Summary: In this study, the structural origin of the pH-dependent repassivation mechanisms in multi-principal element alloys (MPEA) was investigated using surface characterization and computational simulations. It was found that selective oxidation in acidic to neutral solutions leads to enhanced nickel enrichment on the surface, resulting in reduced repassivation capability and corrosion resistance.
Article
Materials Science, Multidisciplinary
X. Y. Xu, C. P. Huang, H. Y. Wang, Y. Z. Li, M. X. Huang
Summary: The limited slip systems of magnesium (Mg) and its alloys hinder their wide applications. By conducting tensile straining experiments, researchers discovered a rate-dependent transition in the dislocation mechanisms of Mg alloys. At high strain rates, glissile dislocations dominate, while easy-glide dislocations dominate at low strain rates. Abundant glissile dislocations do not necessarily improve ductility.
Article
Materials Science, Multidisciplinary
M. S. Szczerba, M. J. Szczerba
Summary: Inverse temperature dependences of the detwinning stress were observed in face-centered cubic deformation twins in Cu-8at.%Al alloy. The detwinning stress increased with temperature when the pi detwinning mode was involved, but decreased when the pi/3 mode was involved. The dual effect of temperature on the detwinning stress was due to the reduction of internal stresses pre-existing within the deformation twins. The complete reduction of internal stresses at about 530 degrees C led to the equivalence of the critical stresses of different detwinning modes and a decrease in the yield stress anisotropy of the twin/matrix structure.
Article
Materials Science, Multidisciplinary
Taowen Dong, Tingting Qin, Wei Zhang, Yaowen Zhang, Zhuoran Feng, Yuxiang Gao, Zhongyu Pan, Zixiang Xia, Yan Wang, Chunming Yang, Peng Wang, Weitao Zheng
Summary: The interaction between the electrode and the electric double layer (EDL) significantly influences the energy storage mechanism. By studying the popular alpha-Fe2O3 electrode and the EDL interaction, we find that the energy storage mechanism of the electrode can be controlled by modulating the EDL.
Article
Materials Science, Multidisciplinary
Matthew R. Barnett, Jun Wang, Sitarama R. Kada, Alban de Vaucorbeil, Andrew Stevenson, Marc Fivel, Peter A. Lynch
Summary: The elastic-plastic transition in magnesium alloy Mg-4.5Zn exhibits bursts of deformation, which are characterized by sudden changes in grain orientation. These bursts occur in a coordinated manner among nearby grains, with the highest burst rate observed at the onset of full plasticity. The most significant burst events are associated with twinning, supported by the observation of twinned structures using electron microscopy. The bursts are often preceded and followed by a stasis in peak movement, indicating a certain "birth size" for twins upon formation and subsequent growth at a later stage.
Article
Materials Science, Multidisciplinary
Vaidehi Menon, Sambit Das, Vikram Gavini, Liang Qi
Summary: Understanding solute segregation thermodynamics is crucial for investigating grain boundary properties. The spectral approach and thermodynamic integration methods can be used to predict solute segregation behavior at grain boundaries and compare with experimental observations, thus aiding in alloy design and performance control.
Article
Materials Science, Multidisciplinary
Feiyu Qin, Lei Hu, Yingcai Zhu, Yuki Sakai, Shogo Kawaguchi, Akihiko Machida, Tetsu Watanuki, Yue-Wen Fang, Jun Sun, Xiangdong Ding, Masaki Azuma
Summary: This study reports on the negative and zero thermal expansion properties of Cd2Re2O7 and Cd1.95Ni0.05Re2O7 materials, along with their ultra-low thermal conductivity. Through investigations of their structures and phonon calculations, the synergistic effect of local structure distortion and soft phonons is revealed as the key to achieving these distinctive properties.
Article
Materials Science, Multidisciplinary
Thomas Beerli, Christian C. Roth, Dirk Mohr
Summary: A novel testing system for miniature specimens is designed to characterize the plastic response of materials for which conventional full-size specimens cannot be extracted. The system has an automated operation process, which reduces the damage to specimens caused by manual handling and improves the stability of the test results. The experiments show that the miniature specimens extracted from stainless steel and aluminum have high reproducibility, and the results are consistent with those of conventional-sized specimens. A correction procedure is provided to consider the influence of surface roughness and heat-affected zone caused by wire EDM.
Article
Materials Science, Multidisciplinary
Rani Mary Joy, Paulius Pobedinskas, Nina Baule, Shengyuan Bai, Daen Jannis, Nicolas Gauquelin, Marie-Amandine Pinault-Thaury, Francois Jomard, Kamatchi Jothiramalingam Sankaran, Rozita Rouzbahani, Fernando Lloret, Derese Desta, Jan D'Haen, Johan Verbeeck, Michael Frank Becker, Ken Haenen
Summary: This study investigates the influence of film microstructure and composition on the Young's modulus and residual stress in nanocrystalline diamond thin films. The results provide insights into the mechanical properties and intrinsic stress sources of these films, and demonstrate the potential for producing high-quality nanocrystalline diamond films under certain conditions.
