Results 71 to 80 of about 7,647 (298)

Method for producing fiber reinforced metallic composites Patent [PDF]

, 1967
Description of method for producing metallic composites reinforced with ceramic and refractory hard metals that are fibered in ...
Jech, R. W., Quatinetz, M., Weeton, J. W.   +2 more
core   +1 more source

Properties and characterization of ALD grown dielectric oxides for MIS structures

, 2011
We report on an extensive structural and electrical characterization of under-gate dielectric oxide insulators Al2O3 and HfO2 grown by Atomic Layer Deposition (ALD).
Dietl, T., Gieraltowska, S., Godlewski, M., Guziewicz, E., Luka, G., Lusakowska, E., Sawicki, M., Sztenkiel, D., Wachnicki, L., Witkowski, B. S.   +9 more
core   +1 more source

HRS Degradation‐Induced Nicotinamide Deficiency in Placental Extracellular Vesicles Triggers Preeclampsia by Disrupting Maternal‐Fetal Immune Homeostasis

Advanced Science, EarlyView.
This study shows that lower NAM levels in PE‐derived pEVs correlate with disease severity. NAM‐deficient pEVs reduce Th1 and Th17 inhibition, leading to PE‐like symptoms. NAM in pEVs inhibits Th1 via SIRT1 and Th17 via macrophages. Reduced NAM in PE‐EVs is due to decreased HRS expression in trophoblasts, resulting from elevated HSP27.
Haiyi Fei, Yuhan Lin, Xiu Liu, Xiaohong Zhu, Xiaowen Lu, Zhan Shi, Fan Jia, Shiqian Xu, Ling Fang, Lingling Jiang, Songying Zhang   +10 more
wiley   +1 more source

AI‐Optimized Vanadium Oxide Multilayers for More Than 20‐fold Enhancement in Bolometric Performance

Advanced Science, EarlyView.
Machine‐learning‐optimized WxV1‐xOy multilayer thin films with graded doping achieve a high TCR (7.3 % K−1), reduced hysteresis, and low noise under CMOS‐compatible growth conditions. This approach overcomes the long‐standing trade‐off in microbolometers between linear response and performance, offering a universal bolometric parameter greatly enhanced
Jin‐Hyun Choi, Hyoung‐Taek Lee, Jeonghoon Kim, Miju Park, Seungjoon Sun, Gye‐Hyeon Kim, Myung‐Ho Kwon, Hyeong‐Ryeol Park, Changhee Sohn   +8 more
wiley   +1 more source

ODS EUROFER Steel Strengthened by Y-(Ce, Hf, La, Sc, and Zr) Complex Oxides

Metals, 2019
Oxide dispersion-strengthened (ODS) materials contain homogeneous dispersions of temperature-stable nano-oxides serving as obstacles for dislocations and further pinning of grain boundaries.
Roman Husák, Hynek Hadraba, Zdeněk Chlup, Milan Heczko, Tomáš Kruml, Viktor Puchý   +5 more
doaj   +1 more source

Superelastic High‐Entropy Oxide Ceramic Aerogels for Thermal Superinsulation and Sealing at Extreme Conditions

Advanced Science, EarlyView.
A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang, Tao Du, Hengzhong Fan, Junhong Liu, Yunfeng Su, Peng He, Hongxiang Chen, Litian Hu, Yongsheng Zhang, Qiangqiang Zhang   +9 more
wiley   +1 more source

SELECTION OF OXIDES FOR STABILIZATION OF ZIRCONIUM DIOXIDE WHILE OBTAINING THERMAL BARRIER COATINGS

Наука и техника, 2015
The paper analyzes selection of oxides and describes in details a majority of oxide systems which are applicable for stabilization of zirconium dioxide while obtaining thermal barrier coatings with maximum amount of tetragonal phase.
V. V. Okovity
doaj  

Hierarchical Strain‐Modified Medium‐Entropy Carbide Ceramics Exhibit Exceptional Ablation Resistance up to 2400°C

Advanced Science, EarlyView.
A novel strategy is developed by doping reduced graphene oxide (rGO) into a (HfZrTi)C medium‐entropy ceramic. This induces a hierarchical strain modification mechanism, synergistically inhibiting crack propagation at the microscale and dissipating stress at the mesoscale.
Junyi Xiao, Pengfei He, Lin Xue, Shujun Hu, Liliang Shao, Chuan Sun, Yunyun Ge, Jiangbo Cheng, Xiubing Liang   +8 more
wiley   +1 more source

Texture modulation of ferroelectric Hf0.5Zr0.5O2 thin films by engineering the polymorphism and texture of tungsten electrodes

Journal of Materiomics
This study proposes a novel approach to achieving highly reliable, low-voltage polarization switching of ferroelectric Hf0.5Zr0.5O2 (HZO) thin films using polymorph- and orientation-controlled W electrodes ((111)-textured α-W and (200)-textured β-W) by ...
Kun Yang, Hyun Woo Jeong, Jaewook Lee, Yong Hyeon Cho, Ju Yong Park, Hyojun Choi, Young Yong Kim, Younghwan Lee, Yunseok Kim, Min Hyuk Park   +9 more
doaj   +1 more source

Hierarchical Embedded Sphere Model: An Interpretable ML‐Guided Multiscale Descriptor Engineering Decodes OER Activity on TM@MO2 Catalysts

Advanced Science, EarlyView.
Hierarchical Embedded Sphere Model combines DFT and interpretable machine learning to decode catalytic activity on TM‐doped MO2. It disentangles global electronic, active‐site, and local coordination effects, revealing two activation mechanisms: dopant‐driven (Rh@MO2) and coordination‐mediated (Fe@ZrO2).
Ziyuan Li, Shan Gao, Yunhan Wang, Yueyu Zhang, Weichao Wang, Xiangmei Duan   +5 more
wiley   +1 more source