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Measurement of friction coefficient for various thin films using millimeter-size movers driven by electro-static force. Seiden kudogata bisho mover wo mochiita usumaku no masatsu keisoku

Abstract

Discussions were given on measurements of coefficients for static friction between different types of thin films. A small light-weight mover of a millimeter size was driven electrostatically to measure friction in a condition close to operation of a micromachine. The thin film materials were fabricated using a sol-gel process, sputtering, vacuum deposition and a CVD process. The materials include Ni, Ti, Al, SiO2, SiNx, Si wafers and glasses. The measured values for Ni-Ni, Al-Al and Ni-Al were larger by from 0.1 to 0.2 than values for bulk. The reason for this would be because of the friction generating mechanisms being different and the sample weight being lighter. Measured values for different types of thin films on silicon wafers were higher. This may be because OH groups are formed on the wafer surface causing high adhesiveness. Values for glasses are small in general. Friction coefficients for SiO2 thin films are small on the whole. However, SiO2-SiO2 showed larger values. This indicates that SiO2 is a useful material for micromechatronics, but proper selection of contacting opponents is important. 7 refs., 4 figs., 7 tabs.
Authors:
Suzuki, M; Watanabe, S; Yoshimura, N; [1]  Fujita, H [2] 
  1. Akita Univ., Akita (Japan)
  2. The University of Tokyo, Tokyo (Japan)
Publication Date:
Dec 20, 1992
Product Type:
Journal Article
Reference Number:
NEDO-93-910653; EDB-93-079625
Resource Relation:
Journal Name: Denki Gakkai Ronbunshi, A (Transactions of the Institute of Electrical Engineers of Japan); (Japan); Journal Volume: 112:12
Subject:
47 OTHER INSTRUMENTATION; 36 MATERIALS SCIENCE; FRICTION; MEASURING METHODS; ELECTROSTATICS; MOTION; PROBES; PROPULSION; THIN FILMS; CHEMICAL VAPOR DEPOSITION; SOL-GEL PROCESS; SPUTTERING; VACUUM COATING; GLASS; HYDROXYL RADICALS; MACHINERY; MINIATURIZATION; SILICON; SILICON OXIDES; SUBSTRATES; CHALCOGENIDES; CHEMICAL COATING; DEPOSITION; ELEMENTS; EQUIPMENT; FILMS; OXIDES; OXYGEN COMPOUNDS; RADICALS; SEMIMETALS; SILICON COMPOUNDS; SURFACE COATING; 440800* - Miscellaneous Instrumentation- (1990-); 360104 - Metals & Alloys- Physical Properties; 360204 - Ceramics, Cermets, & Refractories- Physical Properties; 360606 - Other Materials- Physical Properties- (1992-)
OSTI ID:
6598382
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0385-4205; CODEN: DGKRA8
Submitting Site:
NEDO
Size:
Pages: 987-992
Announcement Date:
Jul 01, 1993

Citation Formats

Suzuki, M, Watanabe, S, Yoshimura, N, and Fujita, H. Measurement of friction coefficient for various thin films using millimeter-size movers driven by electro-static force. Seiden kudogata bisho mover wo mochiita usumaku no masatsu keisoku. Japan: N. p., 1992. Web.
Suzuki, M, Watanabe, S, Yoshimura, N, & Fujita, H. Measurement of friction coefficient for various thin films using millimeter-size movers driven by electro-static force. Seiden kudogata bisho mover wo mochiita usumaku no masatsu keisoku. Japan.
Suzuki, M, Watanabe, S, Yoshimura, N, and Fujita, H. 1992. "Measurement of friction coefficient for various thin films using millimeter-size movers driven by electro-static force. Seiden kudogata bisho mover wo mochiita usumaku no masatsu keisoku." Japan.
@misc{etde_6598382,
title = {Measurement of friction coefficient for various thin films using millimeter-size movers driven by electro-static force. Seiden kudogata bisho mover wo mochiita usumaku no masatsu keisoku}
author = {Suzuki, M, Watanabe, S, Yoshimura, N, and Fujita, H}
abstractNote = {Discussions were given on measurements of coefficients for static friction between different types of thin films. A small light-weight mover of a millimeter size was driven electrostatically to measure friction in a condition close to operation of a micromachine. The thin film materials were fabricated using a sol-gel process, sputtering, vacuum deposition and a CVD process. The materials include Ni, Ti, Al, SiO2, SiNx, Si wafers and glasses. The measured values for Ni-Ni, Al-Al and Ni-Al were larger by from 0.1 to 0.2 than values for bulk. The reason for this would be because of the friction generating mechanisms being different and the sample weight being lighter. Measured values for different types of thin films on silicon wafers were higher. This may be because OH groups are formed on the wafer surface causing high adhesiveness. Values for glasses are small in general. Friction coefficients for SiO2 thin films are small on the whole. However, SiO2-SiO2 showed larger values. This indicates that SiO2 is a useful material for micromechatronics, but proper selection of contacting opponents is important. 7 refs., 4 figs., 7 tabs.}
journal = []
volume = {112:12}
journal type = {AC}
place = {Japan}
year = {1992}
month = {Dec}
}