Effect of SrO on the Structure of Apatite and Wollastonite Phases of Na₂O-CaO-SiO₂-P₂O₅Glass System  

作　　者：Gomaa El Damrawi Rawya Mhammed Ramadan Mohamed El Baiomy Gomaa El Damrawi;Rawya Mhammed Ramadan;Mohamed El Baiomy(Glass Research Group, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt;Microwave Physics and Dielectrics Department, Physics Research Division, National Research Centre, Cairo, Egypt)

机构地区：[1]Glass Research Group, Physics Department, Faculty of Science, Mansoura University, Mansoura, Egypt [2]Microwave Physics and Dielectrics Department, Physics Research Division, National Research Centre, Cairo, Egypt

出　　处：《New Journal of Glass and Ceramics》2021年第2期45-56,共12页玻璃与陶瓷期刊（英文）

摘　　要：Glasses in the system 24.5Na_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">O·24.5CaO·6P</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">O</span>_{<span style="font-size:12px;font-family:Verdana;">5</span>}<span style="font-family:Verdana;">·xSrO·(45-x)SiO</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> have been</span><span style="font-family:;" "=""><span style="font-family:Verdana;"> studied in the composition region of x = 0 - 15 mol%. The as prepared glasses are transparent and have an amorphous network structure. On the otherhand, heat treated glasses are transformed to opaque white glass ceramic characterized by their highly crystalline network structure. Crystalline apatite (calcium phosphate, Ca</span>_{<span style="font-size:12px;font-family:Verdana;">3</span>}<span style="font-family:Verdana;">(PO</span>_{<span style="font-size:12px;font-family:Verdana;">4</span>}<span style="font-family:Verdana;">)</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">, wollastonite (calcium silicate, CaSiO</span>_{<span style="font-size:12px;font-family:Verdana;">3</span>}<span style="font-family:Verdana;">), and strontium calcium phosphate</span></span><span style="font-family:Verdana;"> </span><span style="font-family:;" "=""><span style="font-family:Verdana;">Ca</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">Sr(PO</span>_{<span style="font-size:12px;font-family:Verdana;">4</span>}<span style="font-family:Verdana;">)</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> </span></span><span style="font-family:;" "=""><span style="font-family:Verdana;">are the main well-formed crystalline species played the major role in mGlasses in the system 24.5Na_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">O·24.5CaO·6P</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">O</span>_{<span style="font-size:12px;font-family:Verdana;">5</span>}<span style="font-family:Verdana;">·xSrO·(45-x)SiO</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> have been</span><span style="font-family:;" "=""><span style="font-family:Verdana;"> studied in the composition region of x = 0 - 15 mol%. The as prepared glasses are transparent and have an amorphous network structure. On the otherhand, heat treated glasses are transformed to opaque white glass ceramic characterized by their highly crystalline network structure. Crystalline apatite (calcium phosphate, Ca</span>_{<span style="font-size:12px;font-family:Verdana;">3</span>}<span style="font-family:Verdana;">(PO</span>_{<span style="font-size:12px;font-family:Verdana;">4</span>}<span style="font-family:Verdana;">)</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">, wollastonite (calcium silicate, CaSiO</span>_{<span style="font-size:12px;font-family:Verdana;">3</span>}<span style="font-family:Verdana;">), and strontium calcium phosphate</span></span><span style="font-family:Verdana;"> </span><span style="font-family:;" "=""><span style="font-family:Verdana;">Ca</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;">Sr(PO</span>_{<span style="font-size:12px;font-family:Verdana;">4</span>}<span style="font-family:Verdana;">)</span>_{<span style="font-size:12px;font-family:Verdana;">2</span>}<span style="font-family:Verdana;"> </span></span><span style="font-family:;" "=""><span style="font-family:Verdana;">are the main well-formed crystalline species played the major role in m

关 键 词：STRUCTURE Physical Properties Gasses Glass Ceramics 

分 类 号：O17[理学—数学]