DataVXInternational Journal of Applied Ceramic TechnologyPaper
journal article·2023-01

Influence of Ti 3 AlC 2 addition on water vapor resistance of low‐carbon Al 2 O 3 –C refractories

Gengfu Liu, Ning Liao, Yawei Li, Yang Zhang, Zixu Ji, Tianbin Zhu

International Journal of Applied Ceramic Technology· Volume 20· Issue 1
Publisher page
Source abstract

Abstract

Abstract Al 2 O 3 –C refractories are potential candidates for use in gasifiers, and they are Cr 2 O 3 ‐free. However, the oxidation of the carbon species and ceramic phases within the high‐temperature water vapor environment may deteriorate the integrity of the working lining. Ti 3 AlC 2 has been verified as an effective antioxidant for Al 2 O 3 –C refractories in air. In this study, the structural transformation of Ti 3 AlC 2 during heat treatment and the water vapor resistance of Ti 3 AlC 2 ‐containing Al 2 O 3 –C refractories are investigated. The results show that the oxidation of Ti 3 AlC 2 and Si in the matrix contributes to the in situ formation of a multilayer core–shell structure of TiC–AlTi 2 O 5 –Al 6 Si 2 O 13 . These structural evolutions improve densification and stimulate pore size refinement, which enhances the mechanical properties and thermal stress resistance of the specimens. In particular, the refined pore size contributes to the significantly improved water vapor resistance at high temperatures.
Source: crossref · Quality: baseline

Research context

Ceramics & glassesMaterials processing

OpenAlex topics: MXene and MAX Phase Materials · Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology Wuhan China

National‐provincial Joint Engineering Research Center of High Temperature Materials and Lining Technology Wuhan University of Science and Technology Wuhan China

Funding

National Natural Science Foundation of China

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