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Type: Artigo de periódico
Title: Development of chemical vapor deposition diamond burrs using hot filament
Author: TravaAiroldi, VJ
Corat, EJ
Pena, AFV
Leite, NF
Valera, MC
Freitas, JR
Baranauskas, V
Abstract: The fabrication of boring tools (burrs) for dentistry with the use of a hot-filament chemical vapor deposition (CVD) system, to form the diamond abrading structure, is reported here. The diamond was synthesized from a methane/freon gas mixture diluted in hydrogen. Comparative drilling tests with conventional diamond burrs and the CVD diamond burrs in borosilicate glasses demonstrated a lifetime more than 20 times larger for the CVD diamond burrs. Also, heat flow experiments in dentine showed that the CVD diamond burrs induce temperature gradients of the same order as the conventional ones. These characteristics of the CVD diamond burrs are highly desirable for odontological applications where the burrs' lifetime and the low temperature processing are essential to the quality and comfort of the treatment. (C) 1996 American Institute of Physics.
Editor: Amer Inst Physics
Citation: Review Of Scientific Instruments. Amer Inst Physics, v. 67, n. 5, n. 1993, n. 1995, 1996.
Rights: aberto
Identifier DOI: 10.1063/1.1147519
Date Issue: 1996
Appears in Collections:Unicamp - Artigos e Outros Documentos

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