Process for drying biscuit of ceramic, metallic ceramic material

Abstract

The invention relates to a ceramics or metal ceramics material biscuit drying method the feature is that repeats the process of drying by wet airí¬microwave heatingí¬drying by wet air for ten times under certain temperature and relative humidity until the semi-drying biscuit containing 5-20% water forming; repeating the process of wet airí¬microwave heatingí¬drying by wet air for thirty times under certain temperature and relative humidity until the semi-drying biscuit containing 5% water. The invention realizes the equally decreasing the water distributing in biscuit. It is easy to operate and low cost.

Description

technical field

[0001] The invention relates to a drying method of a green body, in particular to a drying method of a ceramic and cermet green body suitable as a flat anode of a solid oxide fuel cell. technical background

[0002] The preparation of flat ceramic thin plates, especially with a series of functional properties, has extremely important application value in high-tech fields. For example, nickel oxide and yttrium oxide doped zirconia (YSZ) materials are used as intermediate temperature solid oxide fuel cells ( The preparation of the SOFC anode is one of the core preparation technologies of the SOFC stack, and its thickness directly affects the power output of the battery. In the preparation of a single cell of a medium-temperature solid oxide fuel cell, the thickness of the anode support is generally 0.5-1.2mm. Reducing the thickness of the anode and increasing its porosity can effectively improve the performance of the battery, but the reduction in thickness , ...