Influence of Silicone Contamination on Brush-Commutator Contacts in Small-Size DC Motors

Akira Okada; Minoru Toda

doi:10.1109/TCHMT.1982.1135959

Influence of Silicone Contamination on Brush-Commutator Contacts in Small-Size DC Motors

Akira Okada, Minoru Toda

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The influence of silicones on the brush-commutator contact in direct current (dc) motors was investigated. The surfaces of silicone-contaminated brushes and commutators were observed by a scanning electron microscope (SEM). The surfaces also were analyzed semiquantitativevly by means of Auger electron spectroscopy (AES). The results suggest that frictionally polymerized silicones at the (Ag-Pd catalytic) metal surface form insulative layers on both the commutator and the brush surfaces. Such contamination causes contact phenomena that impede motor startup at low voltages. Small quantities of variously located silicone can also contaminate commutator and brush surfaces even during room temperature storage.

Original language	English
Pages (from-to)	281-286
Number of pages	6
Journal	IEEE Transactions on Components, Hybrids, and Manufacturing Technology
Volume	5
Issue number	2
DOIs	https://doi.org/10.1109/TCHMT.1982.1135959
Publication status	Published - Jun 1982
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Engineering(all)
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1109/TCHMT.1982.1135959

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title = "Influence of Silicone Contamination on Brush-Commutator Contacts in Small-Size DC Motors",

abstract = "The influence of silicones on the brush-commutator contact in direct current (dc) motors was investigated. The surfaces of silicone-contaminated brushes and commutators were observed by a scanning electron microscope (SEM). The surfaces also were analyzed semiquantitativevly by means of Auger electron spectroscopy (AES). The results suggest that frictionally polymerized silicones at the (Ag-Pd catalytic) metal surface form insulative layers on both the commutator and the brush surfaces. Such contamination causes contact phenomena that impede motor startup at low voltages. Small quantities of variously located silicone can also contaminate commutator and brush surfaces even during room temperature storage.",

author = "Akira Okada and Minoru Toda",

year = "1982",

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doi = "10.1109/TCHMT.1982.1135959",

language = "English",

volume = "5",

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journal = "IEEE Transactions on Components, Hybrids, and Manufacturing Technology",

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T1 - Influence of Silicone Contamination on Brush-Commutator Contacts in Small-Size DC Motors

AU - Okada, Akira

AU - Toda, Minoru

PY - 1982/6

Y1 - 1982/6

N2 - The influence of silicones on the brush-commutator contact in direct current (dc) motors was investigated. The surfaces of silicone-contaminated brushes and commutators were observed by a scanning electron microscope (SEM). The surfaces also were analyzed semiquantitativevly by means of Auger electron spectroscopy (AES). The results suggest that frictionally polymerized silicones at the (Ag-Pd catalytic) metal surface form insulative layers on both the commutator and the brush surfaces. Such contamination causes contact phenomena that impede motor startup at low voltages. Small quantities of variously located silicone can also contaminate commutator and brush surfaces even during room temperature storage.

AB - The influence of silicones on the brush-commutator contact in direct current (dc) motors was investigated. The surfaces of silicone-contaminated brushes and commutators were observed by a scanning electron microscope (SEM). The surfaces also were analyzed semiquantitativevly by means of Auger electron spectroscopy (AES). The results suggest that frictionally polymerized silicones at the (Ag-Pd catalytic) metal surface form insulative layers on both the commutator and the brush surfaces. Such contamination causes contact phenomena that impede motor startup at low voltages. Small quantities of variously located silicone can also contaminate commutator and brush surfaces even during room temperature storage.

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Influence of Silicone Contamination on Brush-Commutator Contacts in Small-Size DC Motors

Abstract

ASJC Scopus subject areas

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