Results 11 to 20 of about 130,070 (297)

Capturing the oxidation of silicon carbide in rocky exoplanetary interiors [PDF]

open access: yes, 2018
Theoretical models predict the condensation of silicon carbide around host stars with C/O ratios higher than 0.65 (cf. C/O$_{\mathrm{Sun}}$ = 0.54), in addition to its observations in meteorites, interstellar medium and protoplanetary disks. Consequently,
Dominik, Carsten   +2 more
core   +3 more sources

Analysis of polytype stability in PVT grown silicon carbide single crystal using competitive lattice model Monte Carlo simulations

open access: yesAIP Advances, 2014
Polytype stability is very important for high quality SiC single crystal growth. However, the growth conditions for the 4H, 6H and 15R polytypes are similar, and the mechanism of polytype stability is not clear. The kinetics aspects, such as surface-step
Hui-Jun Guo   +9 more
doaj   +1 more source

Porous structures based on silicon carbide for photovoltaic cells

open access: yesФизика волновых процессов и радиотехнические системы, 2019
A method for producing porous silicon carbide by carbonization of porous silicon is considered. The surface morphology and phase composition of porous silicon carbide layers obtained by diffusion of carbon from the gas phase into the porous silicon layer
D.Y. Golubeva   +3 more
doaj   +1 more source

Effect of reaction sintering modes on the structure and properties of carbide ceramics

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2019
Experimental studies of the structure, phase composition, physical and mechanical properties of the reaction-sintered ceramics based on silicon carbide and boron obtained by reaction sintering have been performed. It has been shown that the properties of
E. V. Zvonarev   +4 more
doaj   +1 more source

Research advances in ion-doped melilite-structured ABC3O7 luminescent materials [PDF]

open access: yesShandong kexue
Melilite-structured compounds with the general formula ABC3O7—where A is an alkaline earth metal (e.g., Ca2+, Sr2+, or Ba2+), B is a trivalent rare-earth ion, and C is a trivalent main-group element (e.g., Ga3+ or Al3+)—represent an important class of ...
WANG Xuping, SHEN Xiaona, YANG Yuguo
doaj   +1 more source

High efficiency four wave mixing and optical bistability in amorphous silicon carbide ring resonators

open access: yesAPL Photonics, 2020
We demonstrate high efficiency wavelength conversion via four wave mixing in amorphous silicon carbide ring resonators with a loaded quality factor of 70 000.
Peng Xing   +4 more
doaj   +1 more source

Nanofabrication of Silicon Carbide and Optical Processing and Inspection of Noncurved Mirrors

open access: yesAdvances in Materials Science and Engineering, 2022
With the gradual development of modern technology, there are still areas that need to be broken through in the field of science. In today’s society, the application range of noncurved mirrors is becoming more and more extensive.
Zuocai Dai   +3 more
doaj   +1 more source

Interaction of ZG-refractory with mold flux and ambient air

open access: yesChimica Techno Acta, 2014
Zirconia graphite refractory is used in continuous casting of steel. Slag corrosion resistance influence on time of casting. With factorial experiment 25-1 influence mixture of refractory (content of graphite, silicon carbide, boron carbide) on oxidation
A. V. Jagovcev, N. V. Obabkov
doaj   +1 more source

Comparative study of cutting force development during the machining of un-hybridized and hybridized ZA43 based metal matrix composites

open access: yesJournal of the Mechanical Behavior of Materials, 2019
In the present study, turning of two grades of composites such as ZA43 silicon carbide and ZA43 silicon carbide and graphite was carried out. The fabrication of both categories of composites were done using stir casting technique.
Kumar K. J. Santhosh   +1 more
doaj   +1 more source

Effects of pore characteristics on SiCf/SiC cladding equivalent Young's modulus

open access: yesHe jishu, 2021
BackgroundSilicon carbide composite has good stabilities in heat, mechanics and chemistry, therefore, become an important candidate cladding for accident tolerant fuel of nuclear power plant.
LI Yi, ZHANG Aimin
doaj   +1 more source

Home - About - Disclaimer - Privacy