PORCELAIN COMPOSITION FIRED AT LOW TEMPERATURE, COMPACT AND LAMINATED BODY

摘要

PURPOSE: To obtain a porcelain compsn. capable of firing together with silver at a low temp. of about. 900 deg.C. CONSTITUTION: This porcelain compsn. consists of, by weight, 40-60% Al2 O3 , 25-40% SiO2 , 5-15% PbO, 0.1-3% Na2 O, 1-3% K2 O 1-6% CaO and 1-6% SrO.