{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T15:09:30Z","timestamp":1771513770814,"version":"3.50.1"},"reference-count":26,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2017,10,3]],"date-time":"2017-10-03T00:00:00Z","timestamp":1506988800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Coatings"],"abstract":"<jats:p>Ceramic cutting inserts coated with ten-fold alternating micro- and nanocrystalline diamond (MCD\/NCD) layers grown by hot filament chemical vapor deposition (CVD) were tested in the machining of an Al based metallic matrix composite (MMC) containing 15 vol % Al2O3 particles. Inserts with total coating thicknesses of approximately 12 \u00b5m and 24 \u00b5m were produced and used in turning: cutting speed (v) of 250 to 1000 m\u00b7min\u22121; depth of cut (DOC) from 0.5 to 3 mm and feed (f) between 0.1 and 0.4 mm\u00b7rev\u22121. The main cutting force increases linearly with DOC (ca. 294 N per mm) and with feed (ca. 640 N per mm\u00b7rev\u22121). The thicker coatings work within the following limits: DOC up to 1.5 mm and maximum speeds of 750 m\u00b7min\u22121 for feeds up to 0.4 mm\u00b7rev\u22121. Flank wear is predominant but crater wear is also observed due to the negative tool normal rake. Layer-by-layer wear of the tool rake, and not total delamination from the substrate, evidenced one of the advantages of using a multilayer design. The MCD\/NCD multilayer diamond coated indexable inserts have longer tool life than most CVD diamond systems and behave as well as most polycrystalline diamond (PCD) tools.<\/jats:p>","DOI":"10.3390\/coatings7100165","type":"journal-article","created":{"date-parts":[[2017,10,3]],"date-time":"2017-10-03T11:33:30Z","timestamp":1507030410000},"page":"165","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Multilayer CVD Diamond Coatings in the Machining of an Al6061-15 Vol % Al2O3 Composite"],"prefix":"10.3390","volume":"7","author":[{"given":"Mohammadmehdi","family":"Shabani","sequence":"first","affiliation":[{"name":"CICECO\u2014Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"given":"Joaquim","family":"Sacramento","sequence":"additional","affiliation":[{"name":"Durit-Metalurgia Portuguesa do Tungst\u00e9nio, Lda., Apartado 24, 3854-909 Albergaria-a-Velha, Portugal"},{"name":"Higher School of Technology and Management at \u00c1gueda, University of Aveiro, Apartado 473, 3754-909 \u00c1gueda, Portugal"}]},{"given":"Filipe","family":"Oliveira","sequence":"additional","affiliation":[{"name":"CICECO\u2014Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2584-1792","authenticated-orcid":false,"given":"Rui","family":"Silva","sequence":"additional","affiliation":[{"name":"CICECO\u2014Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, Campus Universit\u00e1rio de Santiago, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2017,10,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"966","DOI":"10.1016\/0924-0136(95)01908-1","article-title":"Machinability of aluminum alloys reinforced with silicon carbide particulates","volume":"56","author":"Hung","year":"1996","journal-title":"J. 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