Mechanical Properties of a Lithium Disilicate Strengthened Lithium Aluminosilicate Glass‐Ceramic. Issue 2 (30th December 2013)

• Record Type: Journal Article
• Authors: Laczka, Maria; Laczka, Karolina; Cholewa‐Kowalska, Katarzyna; Kounga, Alain B.; Appert, Christoph; Reimanis, I.
• Is Part Of: Journal of the American Ceramic Society. Volume 97:Issue 2(2014)
• Page Start: 361
• Page End: 364
• Publication Date: 2013-12-30
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.12780
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace12780-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>A glass composition in the Li₂O–Al₂O₃–SiO₂ (LAS)‐ternary phase diagram is presented, which enables the crystallization of Li₂Si₂O₅ as well as LiAlSi₂O₆ upon a well‐defined heat treatment. Li₂Si₂O₅ is the minor crystalline phase in the glass‐ceramic and generates through the bulk strengthening of the LAS glass‐ceramic. A flexural strength as higher as 400 MPa is measured in the proposed glass‐ceramic formulation, thus outperforming conventional LAS‐glass‐ceramics. A combination of the presence of those two crystalline phases of very different mechanical properties and coefficient of thermal expansion as well as the microstructure are believed to contribute largely to the enhancement of the measured properties.</p> </abstract>