prefirev.

1944 E. Rosenthal Porcelain & Other Ceramic Insulating Materials I. viii. 203 Originally, pressed and other thin-walled articles were pre-fired at a temperature of between 800°–950°C. in order to give them the necessary mechanical strength so that they would not be deformed during the dipping process.

1961 M. Francis tr. H. Salmang Ceramics viii. 210 The grog should also be pre-fired at the temperature at which the brick will subsequently be used, so as to prevent the texture of the brick loosening owing to aftershrinkage of grog grains.

1965 G. J. Williams Econ. Geol. N.Z. xx. 366/1 Some use has been made of these materials for refractories at Kamo, where the shrinkage is controlled by prefiring part of the mix.

1990 Sci. Amer. Apr. 83/3 This could have been done only if the glaze had been fritted, or prefired, at the high temperature and then ground up, mixed with water, applied to the clay body and refired at the lower temperature.

1944 E. Rosenthal Porcelain & Other Ceramic Insulating Materials I. viii. 203 With the introduction of the aerograph for mass-production glazing pre-firing of the articles becomes superfluous.

1996 Ceramic Industry (Nexis) July 210 If normal cleaning doesn't resolve this problem, then a prefiring or mild acid bath is required.