Ta yaya micropowder na silicon carbide mai kore ke inganta aikin kayan shafa?
Daruruwan mita a sama, iska mai ƙarfi ta ratsa. Tsohon Li ya ɗaure igiyar tsaronsa da kyau ya fara duba babban ruwan injin iska da ke gabansa. Yatsunsa masu kaifi sun nuna alamun lalacewa na ɗan lokaci a gefen ruwan—wuri mafi sauƙin kamuwa da ƙura daga iska da yashi. Ya yi fushi, yana sane da cewa nan ba da jimawa ba za a sauke ruwan don gyarawa. Rufin musamman da ke saman ruwan shine layin kariya na farko daga iska da yashi. Kuma a cikin wannan kariyar akwai wani muhimmin "ƙashi mai tauri"—foda mai siffar silicon carbide kore.
"Wannan 'yashi mai kyau' mai kore mai kyau na iya zama kamar ba shi da wani amfani, amma ba tare da shi ba, rufin ruwanmu zai zama kamar takarda!" Tsohon Li sau da yawa yana magana da sabbin masu fasaha. A cikin duniyar kayan shafa mai faɗi, ƙaramin foda na silicon carbide mai kore yana taka rawa mara maye gurbinsa. Ba wai kawai "kashin bayan" rufin ba ne; har ila yau kayan aiki ne mai amfani wanda ke haɓaka aikinsa gabaɗaya.
“Kasusuwa Masu Tauri” Suna Tallafawa “Garkuwar Lu'u-lu'u”
Koren silicon carbideA taƙaice dai, micropowder tsantsa ne na silicon carbide (SiC) wanda aka niƙa shi da kyau zuwa foda mai girman micron. Mafi kyawun siffarsa ita ce taurinsa! Taurinsa na Mohs ya kai 9.5, ya zarce lu'u-lu'u da nitride mai siffar cubic boron kawai, kuma ya fi tauri fiye da ƙarfe na yau da kullun. Ƙara shi zuwa wasu nau'ikan shafa masu jure lalacewa kamar ƙara ƙananan ƙwayoyin lu'u-lu'u marasa adadi a cikin laka mai laushi.
Ka yi tunanin saman rufin da yashi mai sauri, tarkacen ƙarfe, ko ruwa mai lalata ya shafa. Idan murfin kawai resin mai laushi ne ko ƙarfe, zai lalace kuma ya lalace cikin daƙiƙa kaɗan. Duk da haka, tare da microfoda mai launin kore na silicon carbide a ko'ina a cikin matrix ɗin murfin, waɗannan barbashi masu tauri suna aiki kamar ƙananan "garkuwa" da "masu katanga" marasa adadi. Suna sha da watsa kuzarin tasirin, suna rage lalacewa da asarar kayan murfin da kansa. Microfoda mai launin kore na silicon carbide, wani shafi mai tauri, mai ɗorewa, ana amfani da shi akan bangon ciki na bututun haƙar ma'adinai, haƙoran bokitin haƙo mai, da mahimman abubuwan haƙo mai. Wannan "tauri" yana tsawaita rayuwar rufin sosai, yana rage yawan da farashin kulawa da maye gurbinsa sosai.
"Ƙarfe Mai Ƙarfi" Yana Ƙarfafa Jiki
Kwayar micropowder mai launin kore ta silicon carbide tana aiki fiye da kawai don samar da ƙarfi. Hakanan tana ƙarfafa rufin.Kayan shafa, musamman waɗanda aka yi da polymer kamar epoxy da polyurethane, galibi suna da iyakataccen ƙarfi, tauri, da juriyar zafi. Micropowder ɗin silicon mai launin kore yana aiki kamar ragar ƙarfe da aka ƙara a kan siminti, yana inganta halayen injiniya na gaba ɗaya na rufin.
1. Ƙarfi da Modulus: Barbashin silicon mai tauri mai launin kore yana mannewa sosai da matrix ɗin murfin, yana canja wurin kaya da kuma watsar da su yadda ya kamata. Lokacin da murfin ya fuskanci buguwa ko lanƙwasawa, waɗannan barbashi suna hana tsagewa daga yaduwa cikin sauƙi, wanda hakan ke inganta ƙarfin tasirin murfin, ƙarfin lanƙwasa, da kuma ƙarfin roba (tauri). Kamar ƙara duwatsu a ƙasa mai laushi ne—yana sa hanya ta fi ƙarfi da juriya ga matsi.
2. Daidaito da Juriyar Zafi:Koren silicon carbide (GSIC)yana da ƙarancin yawan faɗaɗa zafi da kuma kyakkyawan kwanciyar hankali na zafi (yana iya jure yanayin zafi da ya wuce digiri 1,000 na Celsius ba tare da ya ruɓe ba). Idan aka ƙara shi a cikin rufi, yana hana lalacewa, tsagewa, har ma da fashewa da ke faruwa sakamakon faɗaɗawa da matsewa mara daidaituwa a cikin yanayi mai zafi da sanyi. Wannan yana da mahimmanci ga rufi da ke aiki a ƙarƙashin manyan canjin zafin jiki ko kuma buƙatar warkewa mai zafi. Yana tabbatar da cewa rufin ya kasance mai karko kuma yana tsayayya da nakasa a ƙarƙashin canjin zafin jiki.
Daidaito mai zurfi tsakanin "kariyar thermal" da "hanyar sadarwa mai sarrafa thermal"
An kuma bincika halayen zafi na ƙananan foda na GSIC a masana'antar rufewa, babban abin shine buƙatun aikace-aikacen.
Rufewar Zafi: Ka yi tunanin wani ɓangaren bango na tanda ko injin da ke buƙatar jure yanayin zafi mai yawa.GSICAna rarraba ƙananan ƙwayoyin micropowders daidai gwargwado a cikin wani rufin rufi mai rufi (kamar rufin da aka yi da yumbu ko na musamman da aka yi da resin), yayin da foda ɗin kansu ke ba da kyakkyawan yanayin zafi, suna kuma ƙara ƙarfin hanyar kwararar zafi a cikin murfin. Suna kuma aiki tare da ramuka don hana zafi shiga cikin murfin cikin sauri yadda ya kamata. Wannan kamar gina tarin bango ne da aka yi da ƙananan tubalan rufi marasa adadi (ƙwayar silicon carbide kore) da iska tsakanin tanderu da duniyar waje, wanda ke ƙara yawan rufin zafi na murfin.
Ingantaccen Watsar Zafi: Akasin haka, ga murfin rufe sassan lantarki ko wasu murfin da ke jure lalacewa ta hanyar ƙarfe waɗanda ke buƙatar saurin watsa zafi, foda mai launin kore na silicon carbide ya zama "ƙwararre a fannin sarrafa zafi." Lantarkin zafinsa ya fi na yawancin polymers da substrates na ƙarfe. Lokacin da ya samar da ingantaccen hanyar sadarwa ta zafi a cikin murfin, yana aiki kamar "hanyoyi masu ƙarancin yawa," yana gudanar da zafi na ciki cikin sauri zuwa saman murfin kuma yana wargaza shi, yana hana zafi da gazawar na'urar. Kamar shafa wani Layer na "manna mai zafi" wanda aka cika da barbashi masu aiki da zafi sosai a saman guntu mai zafi.