Article
Materials Science, Multidisciplinary
Rei Kawabata, Tomoki Matsuda, Ryotaro Seo, Akio Hirose
Summary: Metallization-free Ag sinter bonding to Si and SiO2 substrates was achieved via the thermal decomposition of Ag oxalate. The results showed promising potential for electronic applications with the direct bonding of electronic materials.
Article
Materials Science, Ceramics
Yan Cao, Majid Zarezadeh Mehrizi, Ali A. Rajhi, Sagr Alamri, Ali E. Anqi
Summary: A Ti3SnC2-Al2O3 composite was produced by mechanical alloying and DTA, with the formation mechanism involving Sn and Al melting, TiO2 reduction, Ti5Sn3 and TiC formation, and reactions among Ti, C, Ti5Sn3, and TiC leading to the formation of Ti3SnC2.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Lingyan Zhang, Kai Xu, Tulu Liang, Jin Shi
Summary: In this paper, surface modification of materials using mechanical alloying and electron beam irradiation is investigated. The results show that the Sn-rich Ni-Sn alloy layer obtained through this method has a higher surface hardness compared to the initial pure nickel layer. The atomic structure of the Sn-doped nickel substrate in the alloy layer is also simulated to understand the improvement mechanism.
Article
Polymer Science
Deize Basilio dos Santos de Aguiar, Denilson Jose Marcolino de Aguiar, Josiane de Fatima Padilha de Paula, Osvaldo Mitsuyuki Cintho
Summary: Mechanical alloying was used to achieve homogeneous dispersion of silver particles in a poly(vinyl alcohol) matrix. The combination of silver and PVA has potential for functional biomaterials. The study showed that mechanical alloying can refine particles in PVA within a short time period, with 4 hours of milling achieving homogeneous dispersion of silver particles in the polymer matrix.
Article
Chemistry, Physical
Kan Chen, Ruizhi Zhang, Jan-Willem G. Bos, Michael J. Reece
Summary: The successful synthesis of a single-phase high-entropy half-Heusler compound through mechanical alloying and spark plasma sintering allows for a homogeneous distribution of multiple elements in the samples. The stability of the samples, as well as the ability to exhibit both n-type and p-type semiconductor behavior by adjusting the Fe/Co ratio, indicate the promising potential of the high-entropy concept in extending composition range and tuning thermoelectric properties for half-Heusler materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Adam A. L. Michalchuk, Elena V. Boldyreva, Ana M. Belenguer, Franziska Emmerling, Vladimir V. Boldyrev
Summary: This passage discusses the evolution of terms in the field of mechanochemistry and the importance of defining parameters to describe experimental conditions clearly. The text also raises questions about encoding information on processes in a concise and self-explanatory manner.
FRONTIERS IN CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Liu Junwei, Li Yong, Lu Shiqiang, Wan Jun, Gao Wenliang
Summary: The crystallization mechanism of Ti44Ni47Nb9 amorphous alloy was studied through mechanical alloying, indicating that the best crystallization effect was achieved at 575 degrees C for 30 minutes. The glass transition temperature, initial crystallization temperature, and peak crystallization temperature all increased with heating rate, showing kinetic effects. The apparent activation energies for different crystallization stages were calculated using the Ozawa equation.
Article
Materials Science, Multidisciplinary
Chun-Liang Chen, Sutrisna
Summary: Refractory high-entropy alloy coatings were prepared on 304 stainless steel substrates via mechanical alloying, with the presence of V element promoting alloying efficiency and hardness. Annealing treatment improved microstructure homogeneity but also caused the formation of Ta-rich oxides.
Article
Chemistry, Physical
Yujun Shi, Wanfeng Yang, Qingguo Bai, Jingyu Qin, Zhonghua Zhang
Summary: Nanoporous metals have shown great potential in various applications, and the liquid Ga-assisted alloying/dealloying strategy is a feasible and scalable method for fabricating substrate-supported nanoporous metals. The study found that the formation of wire-like and bulk-like nanoporous Ag is influenced by the interdiffusion of Ag and Ga atoms, and the thickness of the alloy layer shows a linear relationship with the mass loading of liquid Ga. The mechanical properties of the substrate-supported nanoporous Ag are excellent, which is crucial for future applications of nanoporous metals.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Francisco Colmenero, Xingxing Jiang, Xiaodong Li, Yanchun Li, Zheshuai Lin
Summary: A recent study has discovered extremely large negative linear compressibilities in crystalline silver oxalate, confirming the presence of this phenomenon even under positive pressure. Experimental verification through high-pressure X-ray diffraction experiments and analysis of lattice parameters under pressure revealed the unique negative compressibility behavior of silver oxalate.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Materials Science, Ceramics
Camila da Costa Pinto, Puspitapallab Chaudhuri, Angsula Ghosh, Daniela Menegon Triche, Sergio Michielon de Souza
Summary: A nanostructured defect-fluorite-type Sm3NbO7 material has been successfully produced using mechanical alloying, with investigations showing that the phase transformations induced by high energy milling can gradually disappear during heat treatment.
CERAMICS INTERNATIONAL
(2021)
Article
Metallurgy & Metallurgical Engineering
Katarina Gaborova, Marcela Achimovicova, Pavel Skacha, Maria Florencia Marquez-Zavalia, Jaroslav Briancin, Olga Sestinova
Summary: This paper investigates the structure, morphology, chemical composition, and leaching of naumannite (Ag2Se). Mechanical activation of Ag2Se in a planetary ball mill increases its specific surface area. The particle size is influenced by milling time, as analyzed by particle size distribution and scanning electron microscopy. Leaching kinetics of non-activated and mechanically activated samples in HNO3 solutions are examined, along with the effect of leaching temperature on the recovery of silver from mechanically activated naumannite.
MINING METALLURGY & EXPLORATION
(2023)
Article
Physics, Condensed Matter
Lingli Kong, Bo Fu, Qiang Shi, Guifa Li, Ping Peng
Summary: The effect of Ti and Nb alloying on the mechanical property of M7C3 carbide was studied using first-principle calculations. The results showed that Ti and Nb prefer to substitute the Cr sites instead of Fe, leading to an improvement in ductility of the carbide phases. The alloying process also resulted in a decrease in G/B ratio and an increase in the initial anisotropy degree. The presence of metallic bonds between Ti-Cr or Nb-Cr was confirmed, which contributed to the improved ductility.
SOLID STATE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Xiaoli Cui, Hui Ye, Houyun Liu, Xinghui Li, Qianming Man, Hui Li, Hongwei Cui, Rui Feng, Yaokun Pan
Summary: In this paper, composite boron treatment, alloying treatment, hot extrusion and heat treatment were used to improve the electrical conductivity and mechanical properties of Al-4Si-0.8Mg-0.6Fe alloy. The Al matrix was purified and plate-like Si was refined into equiaxed form through the above processes. Additionally, small-sized granular Fe/Mg-rich phases contributed to the excellent mechanical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Parisa Akhlaghi, Mostafa Amirjan, Nader Parvin
Summary: CoCrFeMnNiTi0.1 high-entropy alloy was fabricated using mechanical alloying and sintering, showing that smaller grain size over time led to improved mechanical properties. The addition of Ti resulted in grain boundary strengthening and precipitation hardening, with the 20-h heat-treated sample exhibiting the optimum mechanical properties.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
