Results 341 to 350 of about 4,585,274 (405)

Dimensionality of high temperature superconductivity in oxides

Physica Scripta, 1989
Many models have been proposed to account for the high temperature superconductivity observed in oxide systems. Almost all of these models proposed are based on the uncoupled low dimensional carrier Cu-O layers of the oxides. Results of several experiments are presented and discussed.
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High temperature oxidation of Ni2AlTi

Journal of Materials Science, 1989
The isothermal oxidation process in bulk and powdered Ni2AlTi (L21 structure) has been studied in the temperature range of 600 to 1200° C in air by means of X-ray diffraction and scanning electron microscopy. At 900 and 1200° C, the transient oxides, NiO and TiO2 were formed in the initial stage on the outer surface.
C. C. Lee, P. Shen
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High-Temperature Oxidation-Resistant ZrN0.4B0.6/SiC Nanohybrid for Enhanced Microwave Absorption.

ACS Applied Materials and Interfaces, 2019
Most microwave absorbers lose their function under harsh working conditions, such as a high temperature and an oxidative environment. Here, we developed a heterogeneous ZrN0.4B0.6/SiC nanohybrid via combined catalytic chemical vapor deposition (CCVD) and
Xian Jian, Wei Tian, Jinyao Li, L. Deng, Zuowan Zhou, Li Zhang, Haipeng Lu, L. Yin, N. Mahmood   +8 more
semanticscholar   +1 more source

The role of Nb on the high temperature oxidation behavior of CoCrFeMnNbxNi high-entropy alloys

Corrosion Science, 2019
The high temperature oxidation behavior of CoCrFeMnNb x Ni high-entropy alloys in air was studied. As-cast CoCrFeMnNb 0.25 Ni alloy is a duplex-phase structure of FCC plus Laves phase.
Dongzhou Huang, J. Lu, Y. Zhuang, Chunxu Tian, Yibo Li   +4 more
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High-temperature oxidation of rhodium

Oxidation of Metals, 1990
The oxidation kinetics of Rh were measured in air at 1 atm. in the temperature range 600–1000°C. The oxidation weight gain proceeds logarithmically at the lower temperatures (600°C, 650°C) followed by a transition to power law behavior at the higher temperatures (≥800°C). The logarithmic growth kinetics result from thickening of a hexagonal Rh2O3 scale.
L. A. Carol, G. S. Mann
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Effects of Al and Mo on high temperature oxidation behavior of refractory high entropy alloys

Transactions of Nonferrous Metals Society of China, 2019
Refractory high entropy alloys have superior mechanical properties at high temperatures, and the oxidation behavior of these alloys is very important. The present work investigated the high temperature oxidation behavior of three alloys with compositions
Yuankui Cao, Yong Liu, B. Liu, Wei-Dong Zhang, Jiawen Wang, D. Meng   +5 more
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Silicon enhances high temperature oxidation resistance of SIMP steel at 700 °C

, 2020
To understand the role of Si in the oxidation resistance of SIMP steel, steels with three Si levels, 0, 0.58 and 1.22 wt.% (0Si, 06Si and 12Si for short), were tailored to investigate their oxidation behaviors at 700 °C.
Lingling Zhang, Wei Yan, Q. Shi, Yanfen Li, Y. Shan, Ke Yang   +5 more
semanticscholar   +1 more source

High-temperature oxidation of alloys

Oxidation of Metals, 1970
Some recent developments in the understanding of the oxidation of alloys at elevated temperatures are reviewed, with special reference to binary and ternary alloys upon which many commercial materials are based. Following an initial classification of alloy systems, certain basic principles and their limitations are considered, including factors ...
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Oxide Electrodes at High Temperatures

1985
High temperature fuel cells and electrolysers based on solid yttria stabilized zirconia electrolytes typically operate at 1000°C to reduce polarization losses. Much of the published work on electrode reactions has been carried out on precious metal electrodes (1–4).
G. P. Wirtz, H. S. Isaacs
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Tribological performance and high temperature oxidation behaviour of thermal sprayed Ni- and NiCrAlY-based composite coatings

, 2020
Mechanical, tribological performance, and high temperature oxidation behaviour of Ni- and NiCrAlY-based composite coatings with the addition of TiO2/ZnO were investigated. NiCrAlY-based composite coating presents a higher microhardness value than that of
Peiying Shi, Wenzhen Wang, Shanhong Wan, Q. Gao, Huwei Sun, Xiaochun Feng, G. Yi, E. Xie, Qihua Wang   +8 more
semanticscholar   +1 more source