Process for manufacturing high density boron carbide

US8110165B2 · kind B2 · utility

Assignee

• Rafael—Armament Development · IL

Inventors

• Shimshon Bar-ziv · Kiryat Shmona, IL
• Yehoshua Hachamo · Nahariah, IL
• David Gorni · Michmoret, IL
• Zohar Ophir · Nes Ziona, IL
• Itamar Gutman · Kiryat Bialik, IL
• Joseph Frey · Haifa, IL
• Zvi Nisenholz · Kiryat Shmona, IL

Key dates

• Filing date: Jun 17, 2005
• Grant date: Feb 7, 2012
• Expiry date: Sep 27, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/9615
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for manufacturing high density boron carbide by pressureless sintering, enabling to create sintered products of complex shapes and high strength. The process comprises mixing raw boron carbide powder with carbon precursor, such as a polysaccharide, compacting the mixture to create an object of the desired shape, and finally carbonizing and sintering the object at higher temperatures.