The effect of laminating factors on the thermal properties of unfired multilayer glass‐ceramic and alumina substrates

Abstract This paper presents experimental data on heat capacities and thermal conductivities of two ceramic tapes measured using standard ASTM methods. The two ceramic tapes were prepared using alumina and a glass ceramic of aluminum‐magnesium silicate with poly(vinyl butyral) binder, and laminated at pressures of 208E5 to 620E5 Pa at two laminating temperatures and times. The measured properties showed that laminating pressures have a greater effect, and that thermal conductivities are affected more than heat capacities. Empirical models have been developed to fit the experimental data. A correlation is developed to express the density of laminated green sheets in terms of the laminating variables—time, temperature, and pressure.