Oxidation Behavior of MAX Phase Ti2 Al(1−x ) Sn x C Solid Solution

2013 ◽  
Vol 96 (5) ◽  
pp. 1359-1362 ◽  
Author(s):  
Guoping Bei ◽  
Birgit-Joana Pedimonte ◽  
Tobias Fey ◽  
Peter Greil
Keyword(s):  
Solid Solution ◽  
Oxidation Behavior ◽  
Max Phase

scholarly journals Oxidation behavior of non-stoichiometric (Zr,Hf,Ti)Cx carbide solid solution powders in air

2021 ◽  
Author(s):  
Huilin Lun ◽  
Yi Zeng ◽  
Xiang Xiong ◽  
Ziming Ye ◽  
Zhongwei Zhang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Oxidation Resistance ◽  
Oxidation Behavior ◽  
Group Iv ◽  
Hypersonic Vehicles ◽  
Metal Carbides ◽  
Initial Oxidation ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Kinetics Of

AbstractMulti-component solid solutions with non-stoichiometric compositions are characteristics of ultra-high temperature carbides as promising materials for hypersonic vehicles. However, for group IV transition-metal carbides, the oxidation behavior of multi-component non-stoichiometric (Zr,Hf,Ti)Cx carbide solid solution has not been clarified yet. The present work fabricated four kinds of (Zr,Hf,Ti)Cx carbide solid solution powders by free-pressureless spark plasma sintering to investigate the oxidation behavior of (Zr,Hf,Ti)Cx in air. The effects of metallic atom composition on oxidation resistance were examined. The results indicate that the oxidation kinetics of (Zr,Hf,Ti)Cx are composition dependent. A high Hf content in (Zr,Hf,Ti)Cx was beneficial to form an amorphous Zr-Hf-Ti-C-O oxycarbide layer as an oxygen barrier to enhance the initial oxidation resistance. Meanwhile, an equiatomic ratio of metallic atoms reduced the growth rate of (Zr,Hf,Ti)O2 oxide, increasing its phase stability at high temperatures, which improved the oxidation activation energy of (Zr, Hf, Ti)Cx.

Oxidation behavior of MoAl0.97Si0.03B solid solution at 1200–1400 ºC

2020 ◽  
Vol 22 ◽  
pp. 100846
Author(s):  
Boxiang Yao ◽  
Shibo Li ◽  
Pengfei Ma ◽  
Weiwei Zhang ◽  
Wenbo Yu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Oxidation Behavior

Oxidation Behavior of Ti2AlC MAX Phase Ceramics at 800 and 1200℃ in Air

2020 ◽  
Vol MA2020-02 (9) ◽  
pp. 1193-1193
Author(s):  
Naoya Yamaguchi ◽  
Tomasz Brylewski ◽  
Jarosław Dąbek ◽  
Makoto Nanko
Keyword(s):  
Oxidation Behavior ◽  
Max Phase

Mechanical and oxidation behavior of textured Ti2AlC and Ti3AlC2 MAX phase materials

2020 ◽  
Vol 40 (15) ◽  
pp. 5258-5271
Author(s):  
Xiaoqiang Li ◽  
Xi Xie ◽  
Jesus Gonzalez-Julian ◽  
Jürgen Malzbender ◽  
Rui Yang
Keyword(s):  
Oxidation Behavior ◽  
Max Phase

Behavior of Fuel and Structural Materials in Severely Damaged Reactors

2014 ◽  
Vol 94 ◽  
pp. 93-96 ◽  
Author(s):  
Nobuaki Sato ◽  
Akira Krishima ◽  
Takayuki Sasaki
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
High Temperatures ◽  
Oxidation Behavior ◽  
Sea Water ◽  
Structural Materials ◽  
Zirconium Oxides ◽  
Solid Solution Sample ◽  
Fukushima Daiichi ◽  
Xrd Method

To study the fuel debris treatment at Fukushima Daiichi NPP, information on the behaviour of fuel and structural materials in severely damaged reactors, i.e., oxides and metals of uranium and zirconium is essential. Since sea water was introduced to the reactors, situation of fuel debris became different from that for TMI case. In this paper, phase relations of uranium and zirconium oxides were analyzed by powder XRD method at high temperatures. By the heat-treatment of the mixture of UO2 and ZrO2 (U:Zr=1:1) under 10 torr air, UO2 was oxidized to U3O8 over 800 oC, The UO2 like phase appeared again at 1350 oC which may be caused by the decomposition of U3O8. The oxidation behavior of the UO2-ZrO2 system was also investigated by using solid solution sample with different U/Zr ratios under different steam and oxygen pressures. The oxidation of the UO2-ZrO2 mixture seemed to be suppressed with decreasing U/Zr ratio. The behavior of fuel materials in the presence of seawater was also discussed as well as that for other structural materials.

scholarly journals Synthesis of Two-Dimensional Nb1.33C (MXene) with Randomly Distributed Vacancies by Etching of the Quaternary Solid Solution (Nb2/3Sc1/3)2AlC MAX Phase

2018 ◽  
Vol 1 (6) ◽  
pp. 2455-2460 ◽  
Author(s):  
J. Halim ◽  
J. Palisaitis ◽  
J. Lu ◽  
J. Thörnberg ◽  
E. J. Moon ◽  
...  
Keyword(s):  
Solid Solution ◽  
Max Phase ◽  
Two Dimensional ◽  
Quaternary Solid Solution
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