Open AccessInvestigation In to Some Electrical Properties of Ytteria – Silicon Carbide, Ceramic Composites
Author(s) -
Intehaa Ahmed Mohammed,
Ayser A. Ibrahim
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/757/1/012063
Subject(s) - silicon carbide , materials science , sintering , composite material , ceramic , dielectric , capacitance , porosity , grain size , optoelectronics , electrode , chemistry
Ytteria, silicon carbide powders of (99.99) purity having (40) μm grain size were used to form different combinations of the system Y2O3- SiC. Silicon carbide particles was added in weight percent ranging (5,10,15and 20), dry milling were done for all the combinations at 8 hours. Samples of disc shape were fabricated and sintered at different temperature (800,1000,1200, 1400 and 1500) °C, under static air and for three hours as soaking time. Porosity for all sintered samples were measured. SEM after sintering were detected too. Electrical properties were studied to find the dielectric constant, breakdown voltage and the capacitance were don. Improvement in its electrical properties were achieved at all the combinations after adding the dispersed Sic particles. And especially at the combination (Y2O3 80-SiC20)Wt.%, that sintered at1500 °C.