Chung-shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense

Fu-Hsing Huang

Yang-Kuao Kuo

Chia-Yi Hsiang

Ching-Hui ChiangLin

Disclosed is a method for hot isostatic pressing a substrate. At first, a metal container is provided. Powder is filled in the metal container before the metal container is located in an oven. The metal container is subjected to isostatic pressing that includes heating and pressing. Thus, the metal container shrinks and presses on the powder evenly and turns the powder into a nugget. The metal container is moved out of the oven and broken to release the nugget. A substrate is cut from the nugget. With the hot isostatic pressing, the substrate exhibits only a few flaws and is large, fine, homogenous and strong so that the substrate is not vulnerable to deformation in a high-pressure environment.

Method for hot isostatic pressing a substrate

Disclosed is a method for protecting aluminum nitride from moisture. At first, a mixing apparatus is provided. Aluminum nitride powder, calcium silicate, dodecylamine, a binding agent and an anhydrous solvent are mixed with one another by the mixing apparatus. The mixture is made into grains in a granulating process. The hydrophilism, thermal stability and thermal conductivity of the dodecylamine are used to make the grains moisture-proof and not vulnerable to deterioration. Thus, the stability of the aluminum nitride is improved.

Growing community of inventors

Taoyuan County, Taiwan

Fu-Hsing Huang