نتایج جستجو برای: modified silicate ceramics

تعداد نتایج: 275616  

2005
Rolf L. Romer Anette Meixner

The isotopic analysis of boron from material that carries only trace amounts of boron requires low boron blank levels. Large efforts are taken to keep blank levels low by purifying reagents. We performed exposure experiments and determined procedure blanks before and after the air-handling system was modified from silicate glass filters to polyethylene/polystyrole and active carbon filters. Our...

Journal: :Dental materials journal 2012
Norimasa Washizawa Hideaki Narusawa Yukimichi Tamaki Takashi Miyazaki

The purpose of this study was to synthesize biomaterials from daily dental waste. Since alginate impression material contains silica and calcium salts, we aimed to synthesize calcium silicate cement from alginate impression material. Gypsum-based investment material was also investigated as control. X-ray diffraction analyses revealed that although firing the set gypsum-based and modified inves...

Journal: :Journal of Minerals and Materials Characterization and Engineering 2018

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