Results 21 to 30 of about 3,199,565 (244)

Development of an Oxidation Resistance Surface Coating on Niobium Base Metal

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2018
Nb (niobium) and Nb-based alloys are promising refractory materials for use at high temperatures. However, due to the weak resistance to high temperature oxidation, a dramatic modification in oxidation resistance is required to use Nb-based refractory ...
Candan Sen Elkoca
doaj   +1 more source

Alloying effect on the oxidation behavior of a ductile Al0.5Cr0.25Nb0.5Ta0.5Ti1.5 refractory high-entropy alloy

Materials Today Advances, 2020
Refractory high-entropy alloys (RHEAs) are widely studied because of their promising potential for ultrahigh-temperature applications. One key challenge towards the development of RHEAs as high-temperature structural materials is to concurrently achieve ...
S. Sheikh, L. Gan, A. Ikeda, H. Murakami, S. Guo   +4 more
doaj   +1 more source

Low-resistance spin-dependent tunnel junctions with HfAlOx barriers for high-density recording-head application [PDF]

, 2002
Spin-dependent tunnel junctions with the structure (Ta 70 /spl Aring//NiFe 70 /spl Aring//MnIr 80 /spl Aring//CoFe 35 /spl Aring//HfAlO/sub x//CoFe 35 /spl Aring//NiFe 40 /spl Aring//TiW(N) 150 /spl Aring/) were fabricated on top of 600-/spl Aring/-thick
Snoeck, E., Cuadra, J., Wang, Jianguo, Batlle Gelabert, Xavier, Freitas, P. P.   +4 more
core   +1 more source

Water vapor oxidation behavior of high-entropy (Ti,Nb,Ta,Hf,W)Cx at 1200 °C: the role of carbon vacancies [PDF]

RSC Advances
The oxidation behavior of (Ti,Nb,Ta,Hf,W)Cx in high-temperature water vapor was studied. The results indicate that the replacement of Zr with W enhances the oxidation resistance of high-entropy (Ti,Zr,Nb,Ta,Hf)C.
Wei Liao, Li Xu, Jiashan Xie, Xiaosong Zhou, Yongqiang Tan   +4 more
doaj   +1 more source

Grey relational analysis and fuzzy synthetic discrimination of antioxidant components in peach fruit [PDF]

Archives of Biological Sciences, 2018
Free phenolic compounds and total phenolic content were quantified using four stages of four blood-flesh and four non-blood-flesh peach fruits. Data were used to assess the oxidation resistance using grey relational analysis and fuzzy synthetic ...
Zhang Binbin, Shen Zhijun, Ma Ruijuan, Yan Juan, Yu Mingliang   +4 more
doaj   +1 more source

HfB2-doped ZrB2-30 vol.% SiC composites: oxidation resistance behavior

Materials Research Express, 2021
To investigate the HfB _2 on microstructure and oxidation resistance of ZrB _2 -30 vol% SiC, ZrB _2 -30 vol% SiC composites with different amounts of HfB _2 (4, 8, and 12 vol%) were consolidated by Spark Plasma Sintering method (SPS).
Ebrahim Dodi, Zohre Balak, Hosein Kafashan   +2 more
doaj   +1 more source

High Temperature Oxidation Behavior of Fe-Cr Steel in Air at 1000-1200 K

Atom Indonesia, 2018
The high temperature oxidation behavior of Fe-Cr steel was studied in air at elevated temperatures of 1000, 1100 and 1200 K for up to 72 ks. The mass change of all samples was recorded in order to evaluate their oxidation kinetic.
T. Sudiro, D. Aryanto, A. S. Wismogroho, C Ciswandi, B. Hermanto, H. Izzuddin, R. Pratama   +6 more
doaj   +1 more source

Microstructural evolution and high-temperature oxidation resistance of laser-modified AlCoCrFeNi(YHf) high-entropy alloy at 1200 °C

Journal of Materials Research and Technology
The Y/Hf-doped equiatomic AlCoCrFeNi high-entropy alloy (HEA) shows good oxidation resistance but suffers from Al depletion and oxide layer spallation during long-term exposure at 1200 °C.
Yunxia Ye, Zhangqi Chen, Dijuan Han, Shan Li, Wei Qian, Shuai Jiang, Tao Zhou, Lei Yu, Bin Gan   +8 more
doaj   +1 more source

Nonlinear Oxidation Behavior in Pure Ni and Ni-Containing Entropic Alloys

Frontiers in Materials, 2018
We performed a combined experimental and theoretical investigation of the oxidation behavior of pure Ni and of the following multi-component Ni-containing alloys with nearly equiatomic compositions: FeNi, CoFeNi, CoCrFeNi, and CoCrFeMnNi.
Songqin Xia, Songqin Xia, Songqin Xia, Cláudio M. Lousada, Huahai Mao, Huahai Mao, Annika C. Maier, Pavel A. Korzhavyi, Rolf Sandström, Yugang Wang, Yong Zhang   +10 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source