Article
Chemistry, Physical
Abbas Bahrami, Ali Mohammadnejad, Mahnaz Sajadi
Summary: This paper investigates the concept and possibility of synthesizing high entropy alloy (HEA)/carbon nanotube (CNT) nanocomposites. AlCoFeMnNi was chosen as the matrix with added 1 wt% CNT as reinforcement. The study shows that CNT addition significantly enhances the maximum shear strength of the alloy, and discusses the implications for mechanical properties and microstructure of HEA/CNT nanocomposites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
T. Sathish, R. Saravanan, Anuj Kumar, Chander Prakash, Mohd Shahazad, Manish Gupta, N. Senthilkumar, Bidhan Pandit, Mohd Ubaidullah, Vladimir A. Smirnov
Summary: This study aimed to enhance the mechanical, wear, and corrosion properties of aluminium alloy AA5083 by incorporating nanoparticles as reinforcements, resulting in hybrid aluminium nanocomposites. The effects of different parameters in the powder metallurgy process were evaluated and analyzed using DOE, and the results showed a significant correlation between mixing time and microhardness of the nanocomposites. The study also found that sintering time had a significant impact on wear and corrosion reduction rates. The highest recorded microhardness value was 136 VHN, while the lowest observed rates of wear and corrosion were 0.192 mm3/m and 0.00081 mm/year, respectively.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Huan Liu, Huihui Zhang, Ming Zhu, Haibo Wu, Ming Yuan, Xuejian Liu, Zhengren Huang
Summary: Highly densified Al4SiC4 ceramics with a relative density of 96.1% were prepared using 2 wt% Y2O3 as additives. The presence of Y2O3 during sintering formed a yttrium aluminate liquid phase, promoting densification and anisotropic grain growth. The resulting Al4SiC4 ceramics had a bimodal grain distribution and exhibited superior mechanical properties compared to hot pressed Al4SiC4 ceramics. Pressureless sintering of Al4SiC4 ceramics is significant for the development and practical application of large-sized and complex-shaped Al4SiC4 ceramic parts.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Multidisciplinary Sciences
Erfan Zalnezhad, F. Musharavati, Tianyi Chen, Fadi Jaber, Kaan Uzun, Muhammad E. H. Chowdhury, Amith Khandakar, Junxing Liu, S. Bae
Summary: A combination of reverse microemulsion and hydrothermal techniques were used to synthesize HA in this study, which was then used to synthesize HA/TiO2/CNT nanocomposite powders. The sample with the highest CNT content displayed superior surface hardness, lower wear rate, and a 58.1% higher Young's modulus compared to other samples. In addition, the in-vitro biocompatibility evaluation showed good binding of human MDA-MB-231 cell line to the surface of the HA/TiO2/CNT composites.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Ceramics
Kohta Nambu, Koji Morita, Kohei Soga, Takahisa Yamamoto, Hiroshi Masuda, Hidehiro Yoshida
Summary: The densification behavior of undoped Y2O3 sintered by AC-flash sintering was systematically investigated at varying frequencies, and it was found that almost fully-densified Y2O3 body was consolidated at 1 kHz frequency, likely due to the high input power and onset temperature. Temperature dependence of power dissipation during the sintering experiments was attributed to the periodic fluctuations of specimen temperature at low frequencies and the phase shift between applied field and specimen current at high frequencies.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Andre L. Molisani, Helio Goldenstein, Humberto N. Yoshimura
Summary: This study investigates the sintering behavior of AlN with different CaO-Y2O3-C mixtures and finds that the in situ formed reducing atmosphere has significant effects on densification behavior and evolution of second-phases. The addition of carbon changes the evolution trend of second-phases and delays the densification process. It also increases the evaporation of second-phase compounds and limits the densification by reducing the liquid-phase fraction and trapping gas inside pores.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Mary A. Awotunde, Peter A. Olubambi, Daolun Chen
Summary: In this study, carbon nanotube (CNT)-reinforced NiAl intermetallic composites were produced via powder metallurgy. The compressive behavior of the sintered NiAl-CNT composites at room temperature was evaluated, with a focus on the toughening mechanisms of the CNT reinforcement and the resulting microstructures. The results showed that the NiAl-0.5 wt% CNT composites exhibited a balanced combination of strength and toughness due to the presence of both coarse and fine bimodal grains in its microstructure.
CERAMICS INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
J. K. Shashikumara, Bhimanagouda Kalaburgi, B. E. Kumara Swamy, H. Nagabhushana, S. C. Sharma, P. Lalitha
Summary: The RGO-Y2O3 and RGO-Y2O3: Cr3+ nanocomposites were synthesized using a hydrothermal technique and characterized by various techniques. Both modified electrodes showed good current response for the electrochemical detection of dopamine.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Ceramics
N. A. Safronova, R. P. Yavetskiy, O. S. Kryzhanovska, M. V. Dobrotvorska, A. E. Balabanov, I. O. Vorona, A. . V. Tolmachev, V. N. Baumer, I. Matolinova, D. Yu. Kosyanov, O. O. Shichalin, E. K. Papynov, S. Hau, C. Gheorghe
Summary: The work focuses on developing transparent nanocomposite materials for potential laser applications, and Ho3+:Y2O3-MgO nanocomposite ceramics were studied for their optical and mechanical properties as well as their application potential. The results show that the material has excellent transparency and luminescent properties, making it suitable for high-power eye-safe lasers.
CERAMICS INTERNATIONAL
(2021)
Article
Polymer Science
Mingxuan Lu, Jianshan Liao, Prabhakar V. Gulgunje, Huibin Chang, Pedro J. Arias-Monje, Jyotsna Ramachandran, Victor Breedveld, Satish Kumar
Summary: Rheological behavior of PAN/CNT dispersions with high CNT loading and their fiber spinning properties were studied, as well as compared to PAN/CNC dispersions. The results showed similarities in rheological behavior and fiber spinning performance between PAN/CNC and PAN/CNT at high filler loading.
Article
Automation & Control Systems
Sathish Thanikodi, Devi Veera Venkata Satya Bhimeswar Reddy Saragada, Marasandra Eswarachari Shashi Kumar, Patan Saleem Akram, Saravanan Rathinasamy, Asiful Hossain Seikh, Abhishek Ghosh
Summary: The study focuses on the fabrication of a nanocomposite material with improved hardness and compressive strength by incorporating fly ash nanopowder and carbon nanotube (CNT) reinforcement into an iron matrix via the sintering process. Parameter optimization using the Taguchi technique with an L36 orthogonal array was conducted, and the optimized factors for maximum hardness and compressive strength were determined to be 2.5% fly ash volume percentage and 5% 50 nm size CNT volume percentage. Composite samples were produced using the identified optimal parameters, and a mathematical model was developed to predict the hardness and compressive strength of various combinations of factors. The models exhibited good agreement with the experimental results, as indicated by an R-2 value greater than 95%.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Chemistry, Physical
Bing Wei, Zuming Liu, Yongkang Ai, Bin Cao, Shupeng Ye, Jian Li, Huan Zhou
Summary: This study prepared MWCNTs reinforced Rene104 superalloy laminated composites with sub-micron grain size using ball milling and spark plasma sintering. It was found that MWCNTs accelerated oxidation at 900 degrees C, but electroless nickel plating on MWCNTs can reduce their influence on high temperature oxidation. This work opens up possibilities for developing high-temperature structural materials reinforced by carbon nanomaterials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Composites
Fatemeh Taher, Hatam Hardani, Soroush Bakhshi, Mohammad Reza Samadi, Mohsen Ayaz
Summary: The aim of this study is to improve the tensile strength, elongation at break, and tensile modulus of PA6/CNT nanocomposite prepared by selective laser sintering. The optimal values of laser power, scanning speed, and CNT content were determined using response surface methodology and desirability function. The results showed that increasing the laser power from 5 to 10 W improved the tensile properties of the nanocomposite, but further increase led to a decrease due to thermal degradation. The scanning speed and CNT content also influenced the tensile properties.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Multidisciplinary
Penghui Cao, Kang Pyo So, Yang Yang, Jong Gil Park, Mingda Li, Long Yan, Jing Hu, Mark Kirk, Meimei Li, Young Hee Lee, Michael P. Short, Ju Li
Summary: The addition of one-dimensional carbon nanotubes (CNTs) to aluminum (Al) to create a metal composite enhances its radiation resistance by promoting defect migration and improving radiation tolerance. This method of controlling defect migration represents a promising opportunity to enhance the radiation resistance of nuclear materials.
Article
Chemistry, Analytical
Rino Nishimoto, Yuichi Sato, Jingxuan Wu, Tomoki Saizaki, Mahiro Kubo, Mengyun Wang, Hiroya Abe, Ines Richard, Tatsuo Yoshinobu, Fabien Sorin, Yuanyuan Guo
Summary: Bioelectronic devices are evolving from rigid to flexible materials, and thermally-drawn-fiber-based bioelectronics show promise due to their flexibility and integration of multi-functionalities. This study designed and fabricated microelectrode fibers made of carbon nanotube-based hybrid nanocomposites for electrochemical sensing. The fibers exhibited high sensitivity and long-term stability. In the future, multiple modalities can be integrated into a single fiber for various biological applications and health monitoring.
Article
Materials Science, Multidisciplinary
Iftikhar Ahmad, Mohammad Islam, Mushtaq Ahmad Dar, Fang Xu, Syed Ismat Shah, Yanqiu Zhu
MATERIALS CHARACTERIZATION
(2015)
Article
Multidisciplinary Sciences
Bahareh Yazdani, Fang Xu, Iftikhar Ahmad, Xianghui Hou, Yongde Xia, Yanqiu Zhu
SCIENTIFIC REPORTS
(2015)
Review
Chemistry, Multidisciplinary
Iftikhar Ahmad, Bahareh Yazdani, Yanqiu Zhu
Article
Materials Science, Multidisciplinary
Iftikhar Ahmad, Mohammad Islam, Hany Sayed Abdo, Tayyab Subhani, Khalil Abdelrazek Khalil, Abdulhakim A. Almajid, Bahareh Yazdani, Yanqiu Zhu
MATERIALS & DESIGN
(2015)
Article
Materials Science, Multidisciplinary
Iftikhar Ahmad, Sharjeel Ahmed, Tayyab Subhani, Khalid Saeed, Mohammad Islam, Nannan Wang, Yanqiu Zhu
CURRENT APPLIED PHYSICS
(2016)
Article
Nanoscience & Nanotechnology
Iftikhar Ahmad, Mohammad Islam, Tayyab Subhani, Yanqiu Zhu
Article
Materials Science, Composites
Iftikhar Ahmad, Mohammad Islam, Nabeel H. Alharthi, Hussain Alawadhi, Tayyab Subhani, Khurram S. Munir, Syed Ismat Shah, Fawad Inam, Yanqiu Zhu
JOURNAL OF COMPOSITE MATERIALS
(2018)
Article
Materials Science, Multidisciplinary
Iftikhar Ahmad, Tayyab Subhani, Nannan Wang, Yanqiu Zhu
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2018)
Article
Materials Science, Ceramics
Iftikhar Ahmad, Mohammad Islam, Abdulhakim A. Almajid, Bahareh Yazdani, Yanqiu Zhu
CERAMICS INTERNATIONAL
(2014)
Article
Materials Science, Composites
I. Ahmad, M. Unwin, H. Cao, H. Chen, H. Zhao, A. Kennedy, Y. Q. Zhu
COMPOSITES SCIENCE AND TECHNOLOGY
(2010)
Article
Materials Science, Ceramics
Iftikhar Ahmad, Hongzhi Cao, Huahui Chen, Huiyou Zhao, Andrew Kennedy, Yan Qiu Zhu
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2010)
Article
Materials Science, Multidisciplinary
Iftikhar Ahmad, Shahid Parvez, Khalid Saeed
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2019)
Article
Chemistry, Physical
Iftikhar Ahmad, Mohammad Islam
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)