High-yield synthesis of nanostructured boron phosphide by a pyrotechnic method

US9790093B2 · kind B2 · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Zhaohua Luan · Midlothian, US
• Lauren A. Morris · Midland Park, US
• Anthony P. Shaw · Madison, US
• Christopher D. Haines · Union, US
• Jay C. Poret · Sparta, US

Key dates

• Filing date: Jan 19, 2016
• Grant date: Oct 17, 2017
• Expiry date: Jan 31, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B25/084
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A simplified method for synthesizing boron phosphide at high yields. The method requires mixing of boron phosphate and magnesium metal without diluents into a homogenous mixture, loosely packing the mixture at less than 20,000 psi and igniting the mixture using an energy input that is not greater than 20% of the reaction energy output to create a self-propagating high-temperature reaction wherein the boron phosphate and magnesium metal is completely burned during the reaction to synthesize boron phosphide at high yields.