Results 21 to 30 of about 131,050 (349)

Paleogeotectonic position of the Kyzyk Chadr copper-porphyry ore field (Republic of Tyva)

Руды и металлы, 2023
Regional-scale localization conditions of the Kyzyk-Chadr molybdenum-copper porphyry ore field in the southern folded frame of the Siberian Platform are considered.
Starostin I. A., Chernykh A. I., Girfanov M. M.   +2 more
doaj   +1 more source

Research progress on new materials and properties of electronic skin

工程科学学报, 2020
Human skin is an extraordinary organ; it comprises an integrated，stretchable network of sensors that transmits information to the brain about tactile and thermal stimuli, enabling us to safely and efficiently operate in our environment.
Su-wei WAN, Jia-lin CHEN, Shi-hong LI, Jun-peng LI   +3 more
doaj   +1 more source

Pt-Sb2Te as high speed phase-change materials with excellent thermal stability

Materials Research Express, 2021
Phase change memory (PCM) has been regarded as one of the most promising candidates for the next-generation nonvolatile memory. In this paper, we propose PtSb _2 Te (PST) phase change material for phase change memory.
Zhihao Song, Junmei Guo, Jialin Chen, Ming Wen, ZhiLong Tan, Chuanjun Wang, Weiming Guan, Kunhua Zhang   +7 more
doaj   +1 more source

ADSORPTION ESSAYS OF PALLADIUM IN MODIFIED SILICA GEL WITH THIOURONIUM GROUPS: EXPERIMENTAL AND THEORICAL STUDIES [PDF]

, 2011
Indexación: Web of Science; ScieloThe silylant 3-cloropropyltriethoxysilyl was anchored over silica gel in anhydrous conditions in order to react with thiourea to obtain modified silica gel with thiouronium. The aim to obtain an inorganic support that is
ARRATIA-PEREZ, RAMIRO, CARREÑO G., ALEXANDER, CHÁVEZ M., IVONNE, MANRÍQUEZ M., JUAN M., MARDONES L., MIGUEL, SCHOTT V., EDUARDO, VEGA DE K., JUAN CARLOS, ZÁRATE B., XIMENA   +7 more
core   +1 more source

Precious Metals-Exchange Rate Volatility Transmissions and Hedging Strategies [PDF]

This study examines the conditional volatility and correlation dependency and interdependency for the four major precious metals (that is, gold, silver, platinum and palladium), while accounting for geopolitics within a multivariate system.
Hammoudeh, S.M., McAleer, M.J., Thompson, M.A., Yuan, Y.   +3 more
core   +7 more sources

Processing and properties of high-purity micro-lamellate (NH4)2RuCl6 particles

Green Processing and Synthesis, 2018
(NH4)2RuCl6 is an important precursor in the synthesis of Ru powder with high-purity requirement. In this study, high-purity (>99.999 wt%) micro-sized (NH4)2RuCl6 pieces were synthesized by distillation and precipitation from crude Ru powder.
Xin Zena, Zhao Panchao, Chen Jialin, Ma Yaohong, Xu Ying, Cui Hao, Yi Wei   +6 more
doaj   +1 more source

Preparation of Ta/W Composite by CVD

Journal of Aeronautical Materials, 2017
The Ta/W composites with 10%W, 13%W and 18%W were prepared by chemical vapor deposition (CVD). The properties of Ta/W composites were investigated by optical microscopy (OM), scanning electron microscopy (SEM ) and tensile test.
QI Xiaohong, ZHENG Xu, CAI Hongzhong, LIU Shaopeng, HU Changyi, WEI Yan   +5 more
doaj   +1 more source

Palladium, platinum, and gold distribution in serpentinite seamounts in the Mariana and Izu-Bonin forearcs: evidence from Leg 125 fluids and serpentinites

, 1992
Palladium, platinum, and gold were analyzed for 20 interstitial water samples from Leg 125. No Pd or Pt was detected in fluids from serpentinite muds from Conical Seamount in the Mariana forearc, indicating that low-temperature seawater-peridotite ...
Parkinson, I. J., Hall, G. E. M., Pearce, J. A.   +2 more
core   +2 more sources

State policy in the field of circulation of precious metals and stones in the first years of soviet power as a critical factor in the development of the national economy in the 1920s. (based on the example of the South of Russia)

Nomadic Civilization: Historical Research
The modernization processes in economic policy that took place in the early years in Soviet Russia significantly influenced the gold mining situation, including in the field of circulation of precious metals and precious stones, which was in a depressed ...
E. N. Badmaeva, K. B. Monakhova
doaj   +1 more source

First Principles Calculation of the Effect of Cu Doping on the Mechanical and Thermodynamic Properties of Au-2.0Ni Solder

Molecules
To meet the demands for high-temperature performance and lightweight materials in aerospace engineering, the Au-Ni solder is often utilized for joining dissimilar materials, such as Ti3Al-based alloys and Ni-based high-temperature alloys.
Yan Wei, Hua Dai, Li Chen, Xian Wang, Hongzhong Cai, Jiankang Zhang, Ying Xu, Xingqiang Wang, Junmei Guo, Zhentao Yuan, Xiao Wang   +10 more
doaj   +1 more source