A Possibility to Decrease the Sintering Temperature of Corundum Ceramics
Journal Title: Analele Universitatii "Dunarea de Jos" din Galati. Fascicula IX, Metalurgie si Stiinta Materialelor - Year 2011, Vol 34, Issue 3
Abstract
The ceramics consisting of more than 95%Al2O3 is called corundum ceramics. The name comes from the name of the α-crystalline form of the aluminum oxide - corundum. The basic technological process influencing the properties of this ceramic is the temperature and the duration of the sintering process. Sintering aids are used to improve sintering and to control grain size. The possibility to use CaTiO3 as sintering aid is investigated. This substance lowers the sintering temperature with more than 100 oC and at the same time the mechanical properties are preserved. The compressive strength is more than 2000 MPa and the flexural strength is more than 200 MPa.
Authors and Affiliations
Vladimir PETKOV, Radoslav VALOV, Dimitar TEODOSSIEV, Ina YANKOVA
Keywords
Related Articles
- EP ID EP627224
- DOI -
- Views 78
- Downloads 0
Redesigning a Jaw Crusher Using Value Analysis, Part II
The paper presents a complete study of VALUE ANALYSIS applied concretely to a selected piece of equipment. The phases and ITERATIVE operation of the Value Analysis method are presented. Value Analysis combines both ENGIN...
Corrosion Behavior of Zinc Alloy Layers
The alloying of zinc with some additional elements in specific quantities could be reliably used in the hot-dip coating process. These elements conferr substantially improved performance to the end-product specially by i...
Study And Researche Regarding Binaring Sistem With Tiobis - β – Naftol
This paper presents the results for contribution of determining the manganese from waters and steel. Manganese, due to its properties, cannot be found but in acid waters and usually associated with iron. In small amounts...
Researches Regarding Waste Processing of Cellulosic Materials by Pyrolysis Process
In this paper were performed laboratory experiments regarding processing by pyrolysis process of urban waste components (wood, paper, textiles). The authors designed and developed an experimental equipment and were appli...
Behavior of Welded Joints From Some Stainless Austenite Steel Types During Nitriding Process
Researches made on welded and nitrided samples from stainless austenite steel types show that nitriding thermo chemical treatment can be applied also for welded joints. As a result of the treatment, a diffusion layer wit...