Production of carbonaceous whisker

Abstract

Abstract PURPOSE: To obtain thin carbonaceous whisker with high aspect ratio and high grade by producing whisker by a hydrocarbon vapor phase decomposition method using calcined iron thiocyanate (II) as catalyst. CONSTITUTION: Iron thiocyanate (II) is calcined at about 500W1200, pref. 900W 1200°C and used as catalyst. Base material such as alumina, mullite or quarts is coated with about 10 -6 W10 -3 gram atom/cm 2 of the catalyst as iron atom. The coated material is put into a furnace core tube, where hydrocarbon gas introduced is contacted to the catalyst to induce thermal decomposition at about 900W1300, pref. 1000W1200°C, giving carbonaceous whisker. This whisker has a diameter about 2W10μ and an aspect ratio above about 100, and hence it is of utility value as composite reinforcing material. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Kazuya Negi
• 👤 Kunio Sakai
• 👤 Nobuhiro Tamura

Bibliographic Details