| 摘要 |
An unsintered ceramic artefact comprises an alumina component selected from partially hydrolysed beta -alumina, partially hydrolysed beta "-alumina, and mixtures thereof, at least one water-soluble binder, and at least one water-soluble plasticizer. The artefact e.g. a green ceramic tape may be made from a ceramic slip comprising beta -alumina, beta "-alumina, water-soluble binder e.g. a starch or cellulose ether, water-soluble plasticizer e.g. glycerol or sorbitol, and water. Release agents for forming green ceramic sheets or tapes on a substrate comprise a first component which is a paraffin and/or a glycerol ester and a second component which is a fatty acid or a salt of a fatty acid. |
