Adherent HFCVD diamond on steels substrates using vanadium carbide intermediate layer

Autor(es)

Damm, D. D. ^{[1, 2]} ; Contin, A. ^{[3, 1]} ; Gomes, M. C. C. B. ^[1] ; Trava-Airoldi, V. J. ^[1] ; Barquete, D. M. ^[4] ; Corat, E. J. ^[1]

Afiliação do(s) autor(es)

^[1] Natl Inst Space Res, Sao Jose Dos Campos, SP - Brazil

^[2] Sao Paulo Fed Univ, Sao Jose Dos Campos, SP - Brazil

^[3] Univ Fed Goias, Goiania, Go - Brazil

^[4] Univ Estadual Santa Cruz, Ilheus, BA - Brazil

• Tipo de documento: Artigo Científico
• Fonte: DIAMOND AND RELATED MATERIALS; v. 89, p. 218-226, OCT 2018.
• Citações Web of Science: 0

Resumo

Investigations on CVD diamond deposition on steels for high performance tools development persisted over years. Literature makes out the need for an intermediate layer to improve adhesion and film quality. This work studied Thermo Diffused Vanadium Carbide (TDVC) coating deposited on AISI 01 steel by thermo reactive diffusion (TRD). Thick TDVC layers formed by varying the thermo diffusion time from 1 h to 12 h. Hot Filament Chemical Vapor Deposition reactor (HFCVD) growth conditions variation made possible diverse diamond films growth, from ultrananocrystalline to microcrystalline. X-ray diffraction, scanning electron microscopy with a field emission gun (FEG-SEM) and Raman spectroscopy were the characterization techniques used. The TDVC coating showed up as an excellent diffusional barrier and, also, a compressive stress reliever. The thicker high quality and adherent HFCVD diamond film grown over the TDVC had a thickness of 3 gm. A TDVC cross-section of 35 gm thickness could effectively mitigate diamond residual thermal compressive stress state after cooling. (AU)

• Processo FAPESP: 15/25149-2 - Estudo da interface de carboneto de vanádio desenvolvidas através da termodifusão e por laser cladding para deposição de diamante HFCVD.
• Beneficiário: Djoille Denner Damm
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/15857-1 - Estudos científicos e aplicações inovadoras em diamante-CVD, Diamond-Like Carbon (DLC) e carbono nanoestruturado, obtidos por deposição química na fase vapor
• Beneficiário: Vladimir Jesus Trava-Airoldi
• Modalidade de apoio: Auxílio à Pesquisa - Temático