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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34P/3LG2TL2
Repositorysid.inpe.br/mtc-m21b/2016/04.11.17.15   (restricted access)
Last Update2016:04.11.17.16.18 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21b/2016/04.11.17.15.05
Metadata Last Update2018:06.04.02.40.41 (UTC) administrator
DOI10.1088/2053-1591/3/2/025601
ISSN2053-1591
Citation KeyFragaCoRoViCaCoTr:2016:StPrAd
TitleNano- And microcrystalline diamond deposition on pretreated WC-Co substrates: Structural properties and adhesion
Year2016
MonthFeb.
Access Date2024, May 12
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size3395 KiB
2. Context
Author1 Fraga, Mariana Amorim
2 Contin, André
3 Rodríguez, L. A. A.
4 Vieira, J.
5 Campos, R. A.
6 Corat, Evaldo José
7 Trava Airoldi, Vladimir Jesus
Resume Identifier1
2
3
4
5
6 8JMKD3MGP5W/3C9JH33
7 8JMKD3MGP5W/3C9JJBK
Group1 CMS-ETES-SPG-INPE-MCTI-GOV-BR
2 CMS-ETES-SPG-INPE-MCTI-GOV-BR
3
4 CMS-ETES-SPG-INPE-MCTI-GOV-BR
5
6 LAS-CTE-INPE-MCTI-GOV-BR
7 LAS-CTE-INPE-MCTI-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Universidade Federal de São Paulo (UNIFESP)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 Universidade Federal de São Paulo (UNIFESP)
6 Instituto Nacional de Pesquisas Espaciais (INPE)
7 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 fraga.mariana80@yahoo.com.br
2 andre.contin@las.inpe.br
3
4
5
6 evaldo.corat@inpe.br
7 vladimir.airoldi@inpe.br
JournalMaterials Research Express
Volume3
Number2
Pages025601
History (UTC)2016-04-11 17:15:05 :: simone -> administrator ::
2016-06-04 05:08:25 :: administrator -> simone :: 2016
2016-06-17 19:13:15 :: simone -> administrator :: 2016
2018-06-04 02:40:41 :: administrator -> simone :: 2016
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsAdhesion
Brazilian MRS
Diamond
Seeding
Wc-co substrate
AbstractMany developments have been made to improve the quality and adherence of CVD diamond films onto WC-Co hard metal tools by the removing the cobalt from the substrate surface through substrate pretreatments. Here we compare the efficiency of three chemical pretreatments of WC-Co substrates for this purpose. First, the work was focused on a detailed study of the composition and structure of as-polished and pretreated substrate surfaces to characterize the effects of the substrate preparation. Considering this objective, a set ofWC-9%Co substrates, before and after pretreatment, was analyzed by FEG-SEM, EDS and x-ray diffraction (XRD). The second stage of the work was devoted to the evaluation of the influence of seeding process, using 4 nm diamond nanoparticles, on the morphology and roughness of the pretreated substrates. The last and most important stage was to deposit diamond coatings with different crystallite sizes (nano and micro) by hot-filament CVD to understand fully the mechanism of growth and adhesion of CVD diamond films on pretreated WC-Co substrates. The transition from nano to microcrystalline diamond was achieved by controlling theCH4,/H2, gas ratio. The nano and microcrystalline samples were grown under same time at different substrate temperatures 600 °C and 800 °C, respectively. The different substrate temperatures allowed the analysis of the cobalt diffusion from the bulk to the substrate surface during CVD film growth. Furthermore, it was possible to evaluate how the coating adhesion is affected by the diffusion. The diamond coatings were characterized by Raman spectroscopy, XRD, EDS, FEG-SEM, atomic force microscope and 1500 NRockwell indentation to evaluate the adhesion.
AreaFISMAT
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Arrangement 2urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > CMS > Nano- And microcrystalline...
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4. Conditions of access and use
Languageen
Target FileFraga_nano.pdf
User Groupsimone
Reader Groupadministrator
simone
Visibilityshown
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Mirror Repositoryurlib.net/www/2011/03.29.20.55
Next Higher Units8JMKD3MGPCW/3ESR3H2
8JMKD3MGPCW/3F358GL
Citing Item Listsid.inpe.br/bibdigital/2013/09.24.19.30 2
sid.inpe.br/mtc-m21/2012/07.13.15.01.38 1
DisseminationWEBSCI; PORTALCAPES; SCOPUS.
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notes
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