I-Alumina powder: impushana yomlingo yokuthuthukisa ukusebenza komkhiqizo
Eshabhu yefekthri, uLao Li wayekhathazekile ngenqwaba yemikhiqizo ephambi kwakhe: ngemuva kokudubula leli qoqoama-substrates e-ceramic, kwakuhlale kunemifantu emincane ebusweni, futhi kungakhathaliseki ukuthi izinga lokushisa leziko lalilungiswa kanjani, lalingenawo umphumela. ULao Wang weza, wasibheka isikhashana, wabe esecosha isikhwama esinempushana emhlophe esandleni: “Zama ukungeza okunye kwalokhu, Lao Li, mhlawumbe kuzosebenza.” ULao Wang uyingcweti yezobuchwepheshe embonini. Akakhulumi kakhulu, kodwa uhlale ethanda ukucabanga ngezinto ezintsha ezihlukahlukene. U-Lao Li wathatha isikhwama ngenhliziyo egcwele, futhi wabona ukuthi ilebula ithi "impuphu ye-alumina".
I-alumina powder? Leli gama lizwakala lijwayelekile, njengempushana evamile emhlophe elabhorethri. Kungaba kanjani "i-magic powder" engaxazulula izinkinga ezinzima? Kodwa uLao Wang wakhomba ngokuzethemba futhi wathi: “Ungakuthathi kancane.
Kungani uLao Wang ebabaza le powder emhlophe engabonakali kangaka? Isizathu silula—lapho singakwazi ukushintsha kalula wonke umhlaba wezinto ezibonakalayo, singase sizame ukwengeza “impushana yomlingo” ukuze sishintshe ukusebenza okubalulekile. Isibonelo, lapho izitsha zobumba zendabuko zingeqinile ngokwanele futhi zijwayele ukuqhekeka; izinsimbi azimelani ne-oxidation ephezulu yezinga lokushisa; futhi amapulasitiki ane-conductivity ephansi yokushisa, i-alumina powder ibonakala ngokuthula futhi iba "itshe lokuthinta" lokuxazulula lezi zinkinga ezibalulekile.
ULao Wang wake wabhekana nezinkinga ezifanayo. Ngalowo nyaka, wayenomthwalo wemfanelo wengxenye ekhethekile ye-ceramic eyayidinga ukuthi ibe nzima, iqine, futhi imelane namazinga okushisa aphezulu.Izinto ezivamile ze-ceramicziyaxoshwa, futhi amandla anele, kodwa zizoqhekeka kancane lapho ziwathinta, njengocezu lwengilazi entekenteke. Uhole iqembu lakhe ukuthi libekezelele izinsuku nobusuku obungenakubalwa elabhorethri, lilungisa ngokuphindaphindiwe ifomula kanye neziko lomlilo ngemva komlilo, kodwa umphumela waba ukuthi amandla ayengekho ezingeni noma ukuqina kwakuphezulu kakhulu, njalo kuzabalaza emaphethelweni obuthakathaka.
"Lezo zinsuku zazishisa ngempela ingqondo, futhi ngalahlekelwa izinwele eziningi." Lao Wang kamuva wakhumbula. Ekugcineni, bazama ukwengeza ingxenye ethile yempushana ye-alumina ehlanzekile kakhulu eyayicutshungulwe ngokunembile ezintweni zokusetshenziswa ze-ceramic. Lapho iziko livulwa futhi, kwenzeka isimangaliso: izingxenye zobumba ezisanda kudubula zenza umsindo ojulile nomnandi lapho zingqongqozwa. Lapho izama ukuyihlephula ngamandla, yamelana namandla ngokuqina futhi ayisaphuki kalula - izinhlayiya ze-alumina zahlakazeka ngokulinganayo ku-matrix, njengokungathi inethiwekhi eqinile engabonakali yayilukwe ngaphakathi, engazange ithuthukise kakhulu kuphela ubulukhuni, kodwa futhi ibambe buthule amandla omthelela, ithuthukise kakhulu i-brittleness.
Kunganii-alumina powderbabe “nomlingo” onjalo? ULao Wang wadweba uhlamvu oluncane ephepheni ngokunganaki: “Bheka, le particle encane ye-alumina inobunzima obuphakeme kakhulu, obuqhathaniswa nesafire yemvelo, kanye nokungagugi kwesigaba sokuqala.” Wathula isikhashana, “Okubaluleke nakakhulu, imelana namazinga okushisa aphakeme, futhi izici zayo zamakhemikhali zizinzile njengeNtaba iTai. Ayishintshi isimo sayo emlilweni oshisa kakhulu, futhi ayigobisi kalula ikhanda layo ngama-asidi aqinile nama-alkali. Ngaphezu kwalokho, iphinde ibe isikhombisi sokushisa esihle, futhi ukushisa kungena ngokushesha okukhulu ngaphakathi kuyo.”
Uma lezi zici ezibonakala zizimele sezingeniswa ngokunembile kwezinye izinto, kufana nokuphendula amatshe abe yigolide. Isibonelo, ukuyifaka kuma-ceramics kungathuthukisa amandla nokuqina kwe-ceramics; ukuyethula ezintweni eziyinhlanganisela ezisekelwe ensimbi kungathuthukisa kakhulu ukumelana kwazo nokugqoka kanye nekhono lokumelana namazinga okushisa aphezulu; ngisho nokuwungeza emhlabeni wepulasitiki kungavumela amapulasitiki ukuthi asuse ukushisa ngokushesha.
Embonini yezogesi,i-alumina powderfuthi yenza “umlingo”. Namuhla, iyiphi iselula ephezulu noma ikhompyutha ephathekayo engakhathazeki ngokushisa kwangaphakathi ngesikhathi sokusebenza? Uma ukushisa okukhiqizwa izingxenye ze-elekthronikhi ezinembayo kungakwazi ukuchithwa ngokushesha, ukusebenza kuzohamba kancane, futhi i-chip izolimala kakhulu. Onjiniyela ngobuhlakani bagcwalisa i-alumina powder ephezulu ye-thermal conductivity ibe abicah akhethekile ashisayo noma amapulasitiki obunjiniyela. Lezi zinto eziqukethe i-alumina powder zinamathiselwe ngokucophelela ezingxenyeni eziyinhloko zesizukulwane sokushisa, njengomgwaqo othembekile "we-thermal conduction highway", oqondisa ngokushesha nangokuphumelelayo ukushisa okushisa ku-chip kugobolondo lokukhipha ukushisa. Idatha yokuhlola ibonisa ukuthi ngaphansi kwezimo ezifanayo, izinga lokushisa eliwumgogodla lemikhiqizo esebenzisa izinto ezishisayo ezishisayo ezinempushana ye-alumina lingancishiswa kakhulu ngamadigri angaphezu kweshumi noma ngisho namashumi uma kuqhathaniswa nezinto ezivamile, ukuqinisekisa ukuthi okokusebenza kusengasebenza ngokuzolile nangokuzinzile ngaphansi kokuphuma kokusebenza okunamandla.
ULao Wang wayevame ukuthi: “ ‘Umlingo’ wangempela awukho kumpushana ngokwawo, kodwa endleleni esiyiqonda ngayo inkinga futhi sithole iphuzu elibalulekile elingathuthukisa ukusebenza kwawo.” Ikhono le-alumina powder alidalwanga lutho, kodwa livela ezindaweni zalo ezivelele, futhi lihlanganiswe ngokufanelekile kwezinye izinto, ukuze likwazi ukusebenzisa amandla alo ngokuthula ngesikhathi esibucayi futhi liguqule ukubola kube umlingo.
Sekusebusuku, uLao Wang wayesafunda amafomula ezinto ezintsha ehhovisi, futhi ukukhanya kubonakalisa isimo sakhe esigxilile. Kwakuthulekile ngaphandle kwefasitela, kuphelai-alumina powder esandleni sakhe kwakucwazimula okumhlophe okufiphele ngaphansi kokukhanya, njengezinkanyezi ezingenakubalwa. Le mpushana ebonakala ivamile inikezwe imisebenzi ehlukene ngobusuku obufanayo obungenakubalwa, ihlanganisa buthule ezintweni ezihlukahlukene, isekela izitezi eziqinile nezingagugi, iqinisekisa ukusebenza kwesikhathi eside nokuzolile kwemishini ye-elekthronikhi enembile, nokuqapha ukwethembeka kwezingxenye ezikhethekile ezindaweni ezimbi kakhulu. Inani lesayensi yezinto ezisetshenziswayo lisekutheni ungathinta kanjani amandla ezinto ezijwayelekile futhi uzenze zibe ukhiye wokunqamula izingqinamba kanye nokwenza ngcono ukusebenza kahle.
Ngokuzayo lapho ubhekene nenkinga ekusebenzeni kwezinto ezibonakalayo, zibuze: Ingabe unalo ucezu “lwempushana ye-alumina” olulinde buthule ukuvuswa ukuze lwenza leso sikhathi somlingo esibalulekile? Cabanga ngakho, ingabe lokhu kuyiqiniso?