Cr2AlC MAX phase foams by replica method

被引：15

作者：

Karimi, Soheil ^{[1
]}

Go, Teresa ^{[1
]}

Vassen, Robert ^{[1
]}

Gonzalez-Julian, Jesus ^{[1
]}

机构：

[1] Forschungszentrum Julich, Inst Energy & Climate Res Mat Synth & Proc IEK 1, D-52425 Julich, Germany

来源：

MATERIALS LETTERS | 2019年 / 240卷

关键词：

Porous materials; MAX phases; Cr2AlC; Replica method; Colloidal processing; MECHANICAL-PROPERTIES; TI2ALC; MICROSTRUCTURE; OXIDATION; POROSITY;

D O I：

10.1016/j.matlet.2019.01.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly pure Cr2AlC foams with high pore interconnectivity were processed by replica method, infiltrating commercial polyurethane foams with 20 and 30 pore per inch (ppi). Content of solid, dispersant and thickener was adjusted to achieve slurries with shear-thinning behavior. Cr2AlC foams were successfully obtained after two consecutive infiltrations, followed by two thermal processes, first in air to burn-out the polymeric foams and then in argon to consolidate the porous structure. The developed foams (cylinders with 40 mm diameter and 20 mm height) present high potential as component for heat exchangers and volumetric solar receivers. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：271 / 274

页数：4

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