Open AccessNear-Infrared Emission Property of ZrC-TiC Solid Solution Prepared by Combustion Synthesis
Author(s) -
Honghua Li,
Shuang Shuang,
Gang He,
Zhishu Yang,
Jiangtao Li
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/678/1/012123
Subject(s) - solid solution , materials science , emissivity , combustion , grain size , microstructure , analytical chemistry (journal) , infrared , metallurgy , chemistry , organic chemistry , physics , optics
ZrC-TiC solid solutions are considered as a promising candidate for ultra-high-temperature structural applications. Zr x Ti 1- x C ( x =0, 0.2, 0.4, 0.6, 0.8, 1.0) solid solutions have been prepared by combustion synthesis method using Zr, Ti and C elemental powder. The effect of Zr/Ti mole ratio on the phase composition, microstructure, oxidation resistance and near-infrared emission property of the synthesized samples were investigated. It was found that the prepared samples with different Zr/Ti mole ratio all have formed a single cubic structure. The grain size of Ti rich solid solution developed to a larger size than that of Zr rich samples. Zr x Ti 1- x C solid solution with x =0.4 has a higher starting oxidation temperature of ∼650°C than that of the other solid solution samples. The prepared solid solution with x=0.4 also shows the largest emissivity of 0.79 in 0.75-2.5μm and 0.76 in 3-5μm wavelength range. The prepared Zr x Ti 1- x Csolid solution samples by combustion synthesis method, which exhibit good near-infrared emission property could be regard as a promising ablation resistant material.