グラファイト/クリストバライト/シリコーンゴム系PTCコンポジットの作製

概要

論文の詳細を見る
PTC materials composed of particles of conducting graphite and insulating cristobalite-form SiO_2 or AIPO_4 were prepared by the use of silicone rubber as a binder. The PTC effect was observed exactly at the reversible phase transition point with a large thermal expansion of cristobalite (ca. 270'C in SiO_2 and ca. 230'C in AIPO_4) , and was reproducible on repeated runs. The magnitude of the PTC effect was high in composites having a middle composition between insulator and conductor in the percolation curve.
社団法人日本セラミックス協会の論文
1996-12-01