Document Details

Document Type : Article In Journal 
Document Title :
The Effect of 5 wt %Yettria-Stabilized Zirconia on Crystallized Glass-Ceramic System at Different Temperature
تأثير إضافة 5% من الزركونيا المثبتة جزئيا بالياتريا على تبلور الزجاج-السيراميكي عند درجات حرارة مختلفة
 
Subject : Chemical & materials engineering 
Document Language : Arabic 
Abstract : This work focuses on studying the effect of (5)wt% Yettria-stabilized Zirconia (ZrO2 .Y2O3) addition on the crystallized glass – ceramic at different crystallization temperatures( i.e. 800, 900, 1000, 1100?C) in the system (Na2O – CaO – SiO2 – P2O5), in order to get suitable materials that might have better physical, mechanical & biological properties that render them to be used safely to repair and reconstruct the diseased parts of living bodies. The results show an improvement in the mechanical properties due to the competition between the additions of the (ZrO2 . Y2O3) and the crystallization temperature. The toughening phase (ZrO2.Y2O3) works as a glass former and an intermediate that resulting in the formation of strong and tough glass-ceramic reinforced by the phases ZrSiO4 and CaSiO3. A radiological examination for one month of an implanted sample of a sintered glass-ceramic that contains (5)wt% of (ZrO2.Y2O3) in a bone tibia of a local breed dog was done .The results revealed no sign of inflammatory at the site of the operation and no toxic substances were released, with a complete bone defect bridging. 
ISSN : 1319-1047 
Journal Name : Engineering Sciences Journal 
Volume : 22 
Issue Number : 1 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Monday, December 12, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
وليد عاصمHanna, Waleed InvestigatorDoctoratevicepresident@uotechnology.edu.iq
صاحب مهديAl-Saffar, Sahib ResearcherDoctoratevicepresident@uotechnology.edu.iq
بيداء حسنHassan, Baidaa ResearcherDoctoratevicepresident@uotechnology.edu.iq

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