Synthesis of the ternary boride Cr3AlB4 ceramics from raw powders contaminated with the amorphous phase

被引：1

作者：

Slominski, Jan ^{[1
]}

Komarek, Sebastian ^{[1
]}

Zientara, Dariusz ^{[1
]}

Madej, Dominika ^{[1
]}

Gubernat, Agnieszka ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, Dept Ceram & Refractories, 30 Mickiewicza Ave, PL-30059 Krakow, Poland

来源：

CERAMICS INTERNATIONAL | 2023年 / 49卷 / 18期

关键词：

MAB phases; Cr3AlB4; Solid-state reaction; Synthesis; Amorphous; CR2ALB2; TEMPERATURE; BEHAVIOR; CRB; MAX;

D O I：

10.1016/j.ceramint.2023.07.042

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Cr3AlB4 is one of the attractive compounds for high-temperature constrictive ceramics due to its combination of properties typical for ceramics or metals. In this study, the formation mechanism of Cr3AlB4, presented in the literature, was confirmed by means of the following analyses: XRD, DSC and SEM. According to them the syn-thesis of Cr3AlB4 occurs is multi-step process with CrB2 being formed first, followed by Cr3B4, which is inter-calated by aluminium to form Cr3AlB4. Furthermore, most scientific papers do not consider the possibility of synthesising MAB phase from the powders containing amorphous phase. In presented work, possibility of syn-thesis of Cr3AlB4 from the powders containing the amorphous phase and influence of this kind of raw powders on synthesis process is shown.

引用

页码：30845 / 30852

页数：8

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