Accession Number : AD0812109

Title :   GAS-METAL REACTION KINETICS BY PULSED BEAM-MASS SPECTROMETRY.

Descriptive Note : Quarterly rept. no. 4, 1 Dec 66-1 Mar 67,

Corporate Author : AVCO MISSILES SPACE AND ELECTRONICS GROUP WILMINGTON MA AVCO SPACE SYSTEMS DI V

Personal Author(s) : Steele, Warren C.

Report Date : 10 APR 1967

Pagination or Media Count : 14

Abstract : Progress in the development and application of a modulated molecular beam-mass spectrometric apparatus for the study of kinetics of reactions between gases and refractory structural materials is summarized. The reaction between tungsten and oxygen had been studied, with particular attention being focused on those reaction products whose desorption curves are multi-exponential in character. This includes both the tungsten oxides WO2 and WO3 and atomic oxygen at high surface coverages. Results are presented and some indicated improvements in the apparatus are discussed. Results of a metallographic examination of some used tungsten targets are also presented. (Author)

Descriptors :   *MASS SPECTROSCOPY), (*REACTION KINETICS, MOLECULAR BEAMS, GASES, REFRACTORY METALS, TUNGSTEN, OXYGEN, TUNGSTEN COMPOUNDS, OXIDES, INTERACTIONS.

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE