Article
Materials Science, Ceramics
Zhilei Wei, Kang Li, Bangzhi Ge, Chaowei Guo, Hongyan Xia, Yajie Guo, Zhongqi Shi
Summary: By adjusting the N-2 pressure, NH4Cl content, and Al particle size, the combustion reaction process, phase composition, and microstructure of AlN particles can be controlled. Within a certain range, low N-2 pressure, a small amount of NH4Cl, and fine Al particles contribute to the formation of nearly spherical AlN particles.
JOURNAL OF ADVANCED CERAMICS
(2021)
Article
Materials Science, Multidisciplinary
Hayk Nersisyan, Nam Huynh Thanh, Jong Hyeon Lee, Hoyoung Suh, Soon Jik Hong
Summary: This paper presents a promising method for synthesizing equiangular 2D hexagons of AlN using carbon-assisted combustion. The 2D hexagons with thicknesses ranging from 0.05 to 5 μm and lateral sizes ranging from 0.5 to 150 μm were successfully produced at temperatures between 1800 and 1950 °C. The formation of the hexagons was found to involve carbonaceous phases of aluminum, including aluminum carbide (Al4C3) and carbonitrides (AlCxN1-x).
Article
Materials Science, Ceramics
Donghai Ding, Bing Bai, Guoqing Xiao, Jiyuan Luo, Xiaochuan Chong
Summary: A novel electromagnetic wave absorber was prepared using combustion synthesis method, with NaCl significantly reducing the grain size of B4C powders. The N-6 sample with nanoscale B4C powders exhibited optimal dielectric and EMW absorbing properties.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Aimin Chu, Yuping Zhao, Rafi Ud-din, Hairong Hu, Qian Zhi, Zerui Wang
Summary: A novel three-step technique was used to synthesize well-distributed AlN nanopowders. The precursor particles consisting of an amorphous structure mixture of Al2O3 and C were prepared first, followed by carbothermal reduction and nitridation and calcination. The resulting AlN powder exhibited good morphology and sinterability.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Jian Zhang, Jin Huang, Ruxia Liu, Guoqiang Luo, Qiang Shen
Summary: The results of the immersion tests on AlN in LiF-LiCl-LiBr-Li salt at 500 degrees C show that low concentrations of metallic Li can inhibit the corrosion of AlN by depleting oxygen impurities, while high concentrations of Li accelerate corrosion by reacting with YAG in AlN.
Article
Chemistry, Applied
Anchu Ashok, Anand Kumar, Janarthanan Ponraj, Said A. Mansour, Faris Tarlochan
Summary: In this study, LaMnO3 perovskite catalyst was synthesized using salt assisted combustion synthesis to control agglomeration and enhance oxygen defects, thereby improving electrochemical properties. LaMnO3-SA showed superior characteristics in oxygen electrocatalysis, displaying enhanced bifunctionality towards oxygen reduction reaction and oxygen evolution reaction. Through the introduction of an inert salt during synthesis, active sites accessible for oxygen electrocatalysis in solution combustion synthesis can be enhanced.
Article
Materials Science, Multidisciplinary
C. L. Yeh, Y. H. Wang
Summary: Zirconium silicide-Al2O3 composites were successfully fabricated using a PTFE-assisted method, where PTFE acted as a reaction promoter to initiate and sustain combustion. The gas-phase diffusion transport induced by PTFE was found to have an effect on the SHS process, resulting in granular morphology products with particle sizes ranging from 1-2 μm.
Article
Materials Science, Ceramics
Ahmad Reza Abbasian, Alireza Mahvary, Shahram Alirezaei
Summary: The study investigates the effects of NaF, KCl, and NaCl salts on NiFe2O4 nanoparticles synthesized through salt-assisted solution combustion. The type of salt significantly influences properties such as crystallinity and specific surface area. KCl salt generates particles with the least coercivity and remanent magnetization in the preparation of spinel ferrites using SSCS.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Yan Mu, Donghai Ding, Guoqing Xiao, Bing Bai, Changkun Lei, Jiyuan Luo, Boying Xing
Summary: This study successfully synthesized submicron-sized B4C powders with high specific surface areas using molten-salt-assisted combustion synthesis, and investigated their phase compositions, micro-structures, and electromagnetic wave absorbing properties. The sample with 6 wt% NaCl exhibited the smallest grain size and highest specific surface area.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Anna Hautecouverture, Paul Estevenon, Cyrielle Rey, Xavier Deschanels
Summary: Plutonium dioxide synthesis is an important step in fuel reprocessing, and the solution combustion synthesis method (SCS) has advantages in fuel preparation. This study reports the synthesis of PuO2 by SCS with citric acid for the first time. An optimal citric acid to plutonium ratio (CA/Pu=1.1) was determined for PuO2 synthesis, resulting in oxides with characteristic morphologies of SCS.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Physical
Zhanglin Chen, Wei Cui, Kaiming Zhu, Chunguang Zhang, Chuandong Zuo, Yude Niu, Qi Wang, Xuanyi Yuan, Guanghua Liu
Summary: An orange-red emitting Mn2+/Si4+ co-doped AlN phosphor was prepared by combustion synthesis method, and its luminescence properties, afterglow performance, and structure were systematically studied. The co-doping of Si4+ was found to enhance the luminescence intensity and afterglow time, with possible mechanisms discussed using XPS analysis. A shallower trap level was formed after Si4+ co-doping, leading to improved afterglow performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Zhilei Wei, Zhejian Zhang, Xiaoyu Zhang, Zhiyuan Li, Tao Li, Jiabin Hu, Shunjian Xu, Zhongqi Shi
Summary: The research successfully developed a novel method for fabricating unidirectional porous AlN ceramics via freeze casting and combustion synthesis route, allowing for control over microstructure, open porosity, thermal conductivity, and compressive strength by adjusting the raw material ratios. The optimal products exhibited controllable structure wavelength and open porosity, with anisotropic thermal conductivity and compressive strength, showing significant promise for a wide range of industrial applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Zhichao Guo, Yongfeng Liang, Jun Cao, Tielong Sun, Xuan Liu, Jilai Xue, Junpin Lin
Summary: In this study, Al matrix composites reinforced with yttrium oxyfluoride (YOF) and TiB2 were successfully fabricated by molten-salt-assisted stirring casting. YOF particles exhibited better distribution in the aluminum matrix and showed better bonding strength with the matrix compared to TiB2. The Al-YOF composite demonstrated higher hardness, tensile strength, and ductility than the Al-TiB2 composite, indicating the potential of YOF in enhancing the performance of Al matrix composites.
Article
Chemistry, Multidisciplinary
Pengye Du, Pengpeng Lei, Yuan Liang, Ran An, Hongjie Zhang
Summary: Lanthanide-doped upconversion luminescent materials have attracted attention for their superior features, but the weak luminescence intensity and low efficiency limit their development. A new strategy of molten salt-assisted synthesis is proposed to enhance lanthanide upconversion luminescence. Rare earth oxides with enhanced luminescence are prepared using molten NaCl as the reaction media and rare earth chlorides as precursors. The obtained materials show potential applications in white light-emitting diodes and other LEDs.
Article
Chemistry, Multidisciplinary
Yuan-Chang Liang, Tsun-Hsuan Li
Summary: A TiO2 nanorod template was decorated with a copper oxide layer using sputtering and postannealing procedures, improving light absorption and charge separation abilities. The ternary phase composition of TC350 exhibited superior photocatalytic activity in degrading RhB dyes.