نتایج جستجو برای: cordierite glass
تعداد نتایج: 72513 فیلتر نتایج به سال:
Study on the production technology in ancient glass artefacts is one of the interesting subject in the field of archaeological sciences. The aim of this study is to identify the chemical composition and production technology in the glass objects discovered form the underground hand-made architectural complex of Arzanfood, near Hamedan, in western Iran. These objects are including some broken pi...
5G and forthcoming 6G communication systems require dielectric ceramics with low relative permittivity (εr) near-zero temperature coefficient of resonant frequency (τf) for the lower part microwave (MW) band at sub-Terahertz. Mg2Al4Si5O18 (MAS) are promising candidates due to their εr (~ 6) high-quality factor (Q×f > 40,000 GHz) but have a large τf. In this study, 5.5 wt% TiO2 (MAS-T5.5) was us...
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