Sisebenzisa amakhukhi ukuthuthukisa ulwazi lwakho.Ngokuqhubeka nokuphequlula leli sayithi, uyavumelana nokusebenzisa kwethu amakhukhi.Ulwazi Olwengeziwe.
Esihlokweni sakamuva esishicilelwe kumagazini i-Additive Manufacturing Letters, abacwaningi baxoxa ngenqubo yokuncibilika kwe-laser yezinhlanganisela zethusi ezisekelwe ku-316L yensimbi engagqwali.
Ucwaningo: Ukuhlanganiswa kwezinhlanganisela zensimbi-yethusi engu-316L ngokuncibilika kwe-laser.Ikhredithi yesithombe: Pedal in stock / Shutterstock.com
Nakuba ukudluliswa kokushisa ngaphakathi kokuqinile okulinganayo kusabalale, ukushisa kungahamba ngesisindo esiqinile endleleni yokumelana okuncane.Kuma-radiators e-foam ensimbi, kunconywa ukusebenzisa i-anisotropy ye-conductivity eshisayo kanye nokuqina ukuze kwandiswe izinga lokudlulisa ukushisa.
Ukwengeza, ukuqhutshwa kwe-anisotropic thermal kulindeleke ukuthi kusize ukunciphisa ukulahlekelwa kwe-parasitic okubangelwa ukuqhutshwa kwe-axial kuma-exchanger okushisa ahlangene.Izindlela ezehlukene ziye zasetshenziswa ukushintsha conductivity ezishisayo alloys nezinsimbi.Azikho kulezi zindlela ezifanele ukukhuphula amasu okulawula isiqondiso sokugeleza kokushisa ezingxenyeni zensimbi.
I-Metal Matrix Composites (MMC) ikhiqizwa ngezimpushana ezigayiwe zebhola kusetshenziswa ubuchwepheshe bokuncibilika kwe-laser kubuchwepheshe bombhede oyimpuphu (LPBF).Indlela entsha eyingxube ye-LPBF isanda kuhlongozwa ukuze kwenziwe ama-alloys e-ODS 304 SS ngokwenza ama-precursors e-yttrium oxide abe ungqimba lwempushana engu-304 SS ngaphambi kokuhlanganiswa kwe-laser kusetshenziswa ubuchwepheshe be-inkjet be-piezoelectric.Inzuzo yale ndlela yikhono lokukhetha ngokukhetha izinto ezibonakalayo ezindaweni ezahlukene ze-powder layer, okuvumela ukuthi ulawule izinto ezibonakalayo ngaphakathi kwevolumu yokusebenza kwethuluzi.
Ukumelwa okuhleliwe kwendlela yombhede oshisayo (a) wokushisisa kanye (b) nokuguqulwa kukayinki.Ikhredithi yesithombe: Murray, JW et al.Izincwadi Zokukhiqiza Okungeziwe.
Kulolu cwaningo, ababhali basebenzise uyinki we-Cu inkjet ukukhombisa indlela yokuncibilika kwe-laser yokukhiqiza izinhlanganisela ze-metal matrix ezine-conductivity engcono ye-thermal kune-316L yensimbi engagqwali.Ukuze kulingise indlela yokuhlanganisa umbhede oyingxube we-inkjet-powder, ungqimba lwempushana yensimbi engagqwali lwafakwa ngoyinki abandulele bekhopha futhi indawo yokugcina amanzi yasetshenziswa ukulawula amazinga komoyampilo phakathi nokucutshungulwa kwe-laser.
Ithimba lidale izinhlanganisela zensimbi engagqwali engu-316L ngethusi lisebenzisa uyinki wethusi we-inkjet endaweni elingisa ingxube ye-laser kumbhede oyimpuphu.Ukulungiswa kwama-reactor amakhemikhali kusetshenziswa inkjet eyi-hybrid entsha kanye nezindlela ze-LPBF ezisizakala ngokuqhutshwa kokushisa okuqondile ukuze kuncishiswe usayizi nesisindo se-reactor.Amathuba okudala izinto eziyinhlanganisela usebenzisa uyinki we-inkjet uyaboniswa.
Abacwaningi bagxile ekukhethweni kwe-Cu inki precursors kanye nenqubo yokukhiqiza yemikhiqizo yokuhlola eyinhlanganisela ukuze kutholwe ukuminyana kwezinto, ukuqina okuncane, ukwakheka, kanye nokuhluka okushisayo.Oyinki bekhandidethi ababili bakhethwa ngokusekelwe ekuzinzeni kwe-oxidation, izithasiselo eziphansi noma ezingekho nhlobo, ukuhambisana nama-inkjet printheads, kanye nezinsalela ezincane ngemva kokuguqulwa.
Oyinki bokuqala be-CufAMP basebenzisa i-copper formate (Cuf) njengosawoti wethusi.I-Vinyltrimethylcopper(II) i-hexafluoroacetylacetonate (Cu(hfac)VTMS) ingesinye isandulela sikayinki.Ukuhlolwa kokuhlola kwenziwa ukuze kubonakale ukuthi ukomiswa nokubola okushisayo kukayinki kubangela ukungcoliswa kwethusi okwengeziwe ngenxa yokuthwala amakhemikhali atholakalayo uma kuqhathaniswa nokomisa okuvamile nokubola okushisayo.
Kusetshenziswa izindlela zombili, kwenziwa ama-microcoupons amabili kanye ne-microstructure yawo uma kuqhathaniswa nokunquma umphumela wendlela yokushintsha.Ekulayisheni okungu-500 gf kanye nesikhathi sokubamba esingu-15 s, i-Vickers microhardness (HV) ikalwe engxenyeni ephambene yendawo yokuhlanganisa yamasampuli amabili.
Isikimu sokuhlolwa kokusetha nezinyathelo zenqubo eziphindiwe ukuze kwenziwe amasampula ayinhlanganisela engu-316L SS–Cu akhiwe kusetshenziswa indlela yombhede oshisayo.Ikhredithi yesithombe: Murray, JW et al.Izincwadi Zokukhiqiza Okungeziwe.
Kutholwe ukuthi i-thermal conductivity ye-composite i-187% ephakeme kunaleyo ye-316L yensimbi engagqwali, futhi i-microhardness i-39% ephansi.Ucwaningo lwe-Microstructural lubonise ukuthi ukunciphisa ukuqhekeka kwe-interface kungathuthukisa ukuqhutshwa kokushisa kanye nezakhiwo zemishini yezinhlanganisela.Ukuze uthole ukugeleza kokushisa okuqondisayo ngaphakathi kwesishintshi sokushisa, kuyadingeka ukwandisa ngokukhetha ukuqhutshwa kokushisa kwe-316L yensimbi engagqwali.Inhlanganisela ine-conductivity esebenzayo yokushisa engu-41.0 W/mK, izikhathi ezingu-2.9 kune-316L yensimbi engagqwali, kanye nokunciphisa ngo-39% kokuqina.
Uma kuqhathaniswa nensimbi engagqwali engu-316L efojiwe futhi ehlanganisiwe, ubulukhuni obuncane besampula kungqimba eshisayo babungu-123 ± 59 HV, obuphansi ngo-39%.I-porosity yenhlanganisela yokugcina yayingu-12%, ehlotshaniswa nokuba khona kwemigodi nokuqhekeka kusixhumanisi phakathi kwezigaba ze-SS ne-Cu.
Kumasampuli ngemva kokushisisa nongqimba lokushisisa, ubulukhuni obuncane bezingxenye eziphambanayo zendawo yokuhlanganisa kwanqunywa njengokungu-110 ± 61 HV kanye no-123 ± 59 HV, ngokulandelana, okuwu-45% no-39% ngaphansi kuka-200 HV we-forged-annealed. 316L insimbi engagqwali.Ngenxa yomehluko omkhulu ekuncibilikeni kwezinga lokushisa kwe-Cu kanye ne-316L yensimbi engagqwali, engaba ngu-315 ° C, ukuqhekeka kwezinhlanganisela ezenziwe kwakhiwa ngenxa yokuqhekeka kwe-fluidization okubangelwa i-fluidization ye-Cu.
Isithombe se-BSE (phezulu kwesokunxele) kanye nemephu yezinto (Fe, Cu, O) ngemva kwesampula yokushisisa, etholwe ngokuhlaziywa kwe-WDS.Ikhredithi yesithombe: Murray, JW et al.Izincwadi Zokukhiqiza Okungeziwe.
Sengiphetha, lolu cwaningo lubonisa indlela entsha yokudala izinhlanganisela ze-316L SS-Cu ezine-conductivity engcono ye-thermal kune-316L SS kusetshenziswa inki yethusi efuthiwe.Inhlanganisela yenziwa ngokufaka uyinki ebhokisini legilavu ​​bese iguqulwa ibe yithusi, bese wengeza impushana yensimbi engagqwali phezu kwayo, bese ixutshwa futhi yelaphe nge-laser welder.
Imiphumela yokuqala ibonisa ukuthi uyinki esekelwe ku-methanol ye-Cuf-AMP ingakwazi ukwehla ibe yithusi elimsulwa ngaphandle kokwenza i-copper oxide endaweni efana nenqubo ye-LPBF.Indlela yombhede oshisayo yokufaka nokuguqula uyinki idala ama-microstructures anezikhala ezimbalwa nokungcola kunezinqubo ezivamile zangemuva kokushisisa.
Ababhali bayaqaphela ukuthi izifundo zesikhathi esizayo zizohlola izindlela zokunciphisa usayizi wokusanhlamvu nokuthuthukisa ukuncibilika nokuxuba izigaba ze-SS ne-Cu, kanye nezakhiwo zemishini yezinhlanganisela.
Murray JW, Speidel A., Spierings A. et al.Ukuhlanganiswa kwezinhlanganisela zensimbi engagqwali engu-316L ngokuncibilika kwe-laser.Ishidi Leqiniso Lokukhiqiza Okungeziwe 100058 (2022).https://www.sciencedirect.com/science/article/pii/S2772369022000329
Ukuzihlangula: Imibono evezwe lapha ngeyombhali ngasese futhi ayibonisi imibono ye-AzoM.com Limited T/A AZoNetwork, umnikazi kanye nomsebenzisi wale webhusayithi.Lesi sitatimende siyingxenye yemigomo yokusebenzisa le webhusayithi.
USurbhi Jain ungumbhali wezobuchwepheshe ozisebenzelayo ozinze eDelhi, eNdiya.Uneziqu ze-Ph.D.Uneziqu ze-PhD kuPhysics azithola eNyuvesi yaseDelhi futhi ubambe iqhaza emisebenzini eminingana yesayensi, yamasiko nezemidlalo.Isizinda sakhe semfundo sisocwaningweni lwesayensi yezinto ezisetshenziswayo ngochwepheshe ekuthuthukisweni kwemishini yokubona nezinzwa.Unolwazi oluningi ekubhaleni okuqukethwe, ukuhlela, ukuhlaziya idatha yokuhlola nokuphathwa kwephrojekthi, futhi ushicilele izindatshana zocwaningo eziyi-7 kumajenali anenkomba ye-Scopus futhi wafaka amalungelo obunikazi ama-India angu-2 ngokusekelwe emsebenzini wakhe wocwaningo.Uzifela ngokufunda, ukubhala, ucwaningo nobuchwepheshe futhi uthanda ukupheka, ukudlala, ukwenza ingadi nezemidlalo.
Jainism, Surbhi.(Meyi 25, 2022).Ukuncibilika kwe-laser kuvumela ukukhiqizwa kwezinhlanganisela zensimbi engagqwali eziqinisiwe nezethusi.AZ.Ibuyiswe ngomhla ka-25 Disemba 2022 kusukela ku-https://www.azom.com/news.aspx?newsID=59155.
Jainism, Surbhi."Ukuncibilika kwe-laser kwenza ukukhiqizwa kwezinhlanganisela zensimbi engagqwali eziqinisiwe nezethusi."AZ.Disemba 25, 2022.Disemba 25, 2022.
Jainism, Surbhi."Ukuncibilika kwe-laser kwenza ukukhiqizwa kwezinhlanganisela zensimbi engagqwali eziqinisiwe nezethusi."AZ.https://www.azom.com/news.aspx?newsID=59155.(Kusukela ngoDisemba 25, 2022).
Jainism, Surbhi.2022. Ukukhiqizwa kwezinhlanganisela zensimbi engagqwali/zethusi eziqinisiwe ngokuncibilika kwe-laser.I-AZoM, ifinyelelwe ngomhla ka-25 Disemba 2022, https://www.azom.com/news.aspx?newsID=59155.
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Lo mkhiqizo kafushane unikeza ukubuka konke kwe-ZEISS Sigma FE-SEM yezithombe zekhwalithi ephezulu kanye ne-microscope yokuhlaziya ethuthukisiwe.
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Imakethe ye-semiconductor yomhlaba wonke ingene esikhathini esijabulisayo.Isidingo sobuchwepheshe be-chip sikhuthaze futhi sabambezela ukuthuthukiswa kwemboni, futhi ukushoda kwamanje kwama-chip kulindeleke ukuthi kuqhubeke isikhathi esithile.Izindlela ezikhona manje kungenzeka zilolonge ikusasa lemboni njengoba lokhu kuqhubeka
Umehluko omkhulu phakathi kwamabhethri asekelwe ku-graphene namabhethri esimo esiqinile ukwakheka kwama-electrode.Nakuba ama-cathodes evame ukuguqulwa, ama-allotropes ekhabhoni angasetshenziswa ukwenza ama-anode.
Eminyakeni yamuva nje, i-inthanethi Yezinto isetshenziswe ngokushesha cishe kuzo zonke izindawo, kodwa ibaluleke kakhulu embonini yezimoto zikagesi.