简介：Uniformdiamondfilmsarehighlydesirableforcuttingindustries,duetotheirhighperformanceandlonglifetimeusedoncuttingtools.Nevertheless,theyaredifficulttoobtainoncuttingtoolswithcomplicatedshapes,greatlylimitingtheapplicationsofdiamondfilms.Inthisstudy,anovelapproachofdepositionforuniformdiamondfilmsisproposed,oncircularsawbladesmadeofcementedcarbideusingreflectorsofbrasssheets.Diamondfilmsaredepositedusinghotfilamentchemicalvapordeposition(HFCVD).Anovelconcavestructureofbrasssheetsisdesignedandfabricated,improvingthedistributionoftemperaturefield,andovercomingthedisadvantagesoftheconventionalHFCVDsystems.ThisincreasestheenergyefficiencyofusewithoutchangingthestructureandincreasingthecostofHFCVD.Thegrainsarerefinedandtheintensitiesofdiamondpeaksarestrengthenedobviously,whichisconfirmedbyscanningelectronmicroscopyandRamanspectrarespectively.