Highly Transparent Mg0.27Al2.58O3.73N0.27 Ceramic Prepared by Pressureless Sintering. Issue 1 (14th December 2013)

• Record Type: Journal Article
• Authors: Liu, Xiao; Wang, Hao; Tu, Bingtian; Wang, Weimin; Fu, Zhengyi; Krell, A.
• Is Part Of: Journal of the American Ceramic Society. Volume 97:Issue 1(2014)
• Page Start: 63
• Page End: 66
• Publication Date: 2013-12-14
• Subjects: Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.12711
• Languages: English
• ISSNs: 0002-7820

Abstract

<abstract abstract-type="main" id="jace12711-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>A novel aluminum magnesium oxynitride transparent ceramic with the chemical formula Mg_0.27Al_2.58O_3.73N_0.27 was firstly prepared by pressureless sintering of fine single‐phase powders at 1875°C for 24 h in nitrogen atmosphere. The ceramic was fully dense with the average grain size of 57.5 μm. The sample showed excellent in‐line transmission from the visible to middle‐infrared wavelengths with the maximum transmittance of 84%, which could be attributed to rare pores in the sintering body. The material also exhibited good mechanical properties of Vickers hardness (13.39 ± 0.18 GPa), fracture toughness (2.46 ± 0.3 MPa/m^1/2), and flexural strength (274 ± 6 MPa).</p> </abstract>