Ingantacciyar Rufi da Ƙarfi – Mafita na Musamman na Aluminium Nitride

Aluminum Nitride (AlN), a matsayin wani ɓangare na Nitrides na Rukuni na III, yana da kaddarori na musamman ciki har da ƙarfin gudanar da zafi, juriya ga wutar lantarki, ƙarancin faɗaɗawar zafi da rashin guba. Ana iya samar da AlN ta hanyoyi kamar nitridation kai tsaye da rage karbothermal na ƙarfen aluminium.

Substrates na seramiki na AlN na Valley Design suna ba da saurin fitar da zafi kuma sune zaɓi mafi dacewa na kayan aiki don aikace-aikacen lantarki na haɗe-haɗe, na wutar lantarki da na RF/microwave. Ingantattun kaddarorinsu na ƙarfafa dielectric da na rufin zafi suna sanya substrates na seramiki na AlN su zama kayan da ake fi so.

Babban gudanar da zafi

An samu buƙata mai yawa ga Aluminium Nitride saboda ci gaban fasaha a na'urorin lantarki da kayan aiki, musamman saboda ƙwarewarsa wajen watsa zafi, wanda ke ba da damar fitar da zafi cikin inganci daga sassan lantarki. Bugu da ƙari, AlN yana kare waɗannan sassa daga lalacewar da yanayin zafi mai ƙarfi ke haifarwa, tare da samar da kariya ta lantarki mafi inganci fiye da tushen seramiki na BeO.

Tare da kyakkyawar kwanciyar sinadarai, wannan kayan na iya jure mawuyacin yanayi kamar oksidation, lalacewar acid da alkali, aikace-aikacen zafin jiki mai yawa da na hasken Ultraviolet (UV) kamar a optoelectronics.

Aluminium Nitride ya bambanta da BeO saboda ba shi da guba kuma lafiya ne a sarrafa, ko da a cikin masana'antu, kazalika ana iya yin haɗin ƙarfe kai tsaye ta amfani da DCB (Direct Copper Bonding), wanda hakan ke sa ya zama mai amfani sosai a na'urorin lantarki na wutar lantarki, aikace-aikacen RF/maikrowef, da kuma haɓakar epitaxial na na'urorin semikondukta na gallium nitride kamar amplifaya na RF da fitilun LED.

Ingantacciyar rufin lantarki

Aluminum Nitride (AlNi) yana ba da madadin abokantaka ga muhalli ga Beryllium Oxide a aikace-aikacen lantarki na haɗe-haɗe, na wutar lantarki da na microwave waɗanda ke buƙatar kayan tushe masu hana wutar lantarki kuma marasa guba. Bugu da ƙari, ƙarancin faɗaɗar zafin jiki na sa ya yi daidai da na kayan siliki wafer, yana ba da damar sarrafa zafi yayin da yake ci gaba da sa na'urorin lantarki masu ƙarfi su yi aiki a kololuwar inganci.

Aluminum Nitride yana da muhimmiyar rawa a fannin optoelectronics domin yana aiki a matsayin tushe ga fitilun LED na gallium nitride (GaN), yana inganta aikin na'ura da tsawon rayuwarta, yayin da fasalulluka na sarrafa zafi na gaba ɗaya ke sanya shi muhimmin sashi a cikin kayan haɗin zafi (TIMs) da sauran matakan rufewa.

Nitride na aluminium ya sha bamban sosai da yawancin kayan seramiki kamar zirconia toughened alumina (ZTA) saboda yana iya jure saurin canjin zafin jiki ba tare da fuskantar girgizar zafi ba, yayin da kyakkyawan juriya ga gogayya ke sa shi kayan da ya dace a yi amfani da shi a saman da ke da juriya ga lalacewa kamar na'urorin gano abubuwa, bearings da sassan kayan aikin injina. Bugu da ƙari, kyakkyawan gudanar da zafi yana ba da hanya mai inganci don hanzarta fitar da zafi a cikin waɗannan muhallai masu tsauri, yayin da yake inganta halayen triboloji – muhimman halaye a cikin kayan aikin da aka ƙera don yin aiki cikin nasara a irin waɗannan muhallai masu tsauri.

Ƙaramin faɗaɗa na zafi

Aluminum Nitride na da ƙimar faɗaɗa zafi (CTE) mai ƙasa sosai, wanda ke nufin cewa canje-canjen zafin jiki ba sa sa shi faɗaɗa ko matsewa sosai, yana mai zama ingantaccen kayan tushe don na'urorin lantarki masu sauri da aikace-aikacen fitilun LED inda dole ne a rage samar da zafi da asarar wuta.

Nitride na aluminium babban mai toshe wutar lantarki ne, yana ba da kariya daga kwararar wutar lantarki da zubar kuzari. Saboda haka, nitride na aluminium ya zama zaɓi mai jan hankali na kayan aiki don tushen lantarki, masu toshe wutar lantarki, da sassa da dole ne su dace da fitilun LED da aka gina da gallium nitride.

AIN kayan seramiki ne mara guba kuma mafi dacewa don aikace-aikacen fasahar kore masu aiki sosai, ciki har da jan mota (jiragen ƙasa da motocin karkashin ƙasa), samar da wutar lantarki (wutar iska da wutar ruwa), motocin lantarki na haɗe-haɗe inda ake dawo da wutar da aka samar yayin dakatarwa zuwa samar da ƙarin wuta, da kuma na'urorin sarrafa zafi kamar tef ɗin aluminium nitride da aka yi masa zanen jan ƙarfe ko tsarin na'urori masu siffar 3-D don biyan buƙatun sarrafa zafi da ke ƙaruwa. Surmet na haɓaka sabbin kayayyakin aluminium nitride don magance waɗannan buƙatun ƙara yawa na sarrafa zafi a cikin waɗannan aikace-aikacen.

Babban juriya ga tsatsa

Aluminum Nitride yana da matuƙar juriya ga lalacewa ta tsatsa kuma ya dace da muhallai masu tsauri inda sauran kayan ba za su iya ba. Yana jure farmakin sinadarai daga yawancin acid da bazai, yayin da yake da matuƙar babban zafin sauyin gilashi da juriya ga gogayya. Bugu da ƙari, Aluminum Nitride ba mai guba ba ne kuma yana da dacewa da jiki, wanda ke sa ya dace don na'urorin likita.

Ana iya shafa rufin aluminium nitride a kan fannoni daban-daban kamar tungsten carbide ko bakin ƙarfe marar tsatsa domin samar da kariya daga tsatsa da juriya ga lalacewa, kuma an yi nasarar shafa shi a kan sassa kamar na'urorin gano igiyar sauti, bearings da sassan kayan aikin injina.

Aluminium Nitride Ceramic na da matuƙar ƙarfin gudanar da zafi na 170 W/mk, mafi girma a cikin kayan seramiki na Valley. Saboda halayen hana wutar lantarki da na dielectric, wannan kayan ya zama zaɓi na musamman don allunan kewayen bugu; ƙari ga haka, ƙarancin faɗaɗar zafin jiki yana ba masu ƙirar modul masu ƙarfi damar amfani da Aluminium Nitride Ceramic tare da sassan siliki wajen gina modul.

Dangane da kyawawan kaddarorin triboloji, ana amfani da rufin alumina sosai a fannoni daban-daban na masana'antu kamar kayan aikin injina, takobin yankan da matattarar haske. Bugu da ƙari, wannan kayan tushe yana zama ginshiƙi ga mikro-elektronika da fasahar hasken LED.

Ƙarfi mai yawa

Ƙarfin aluminum nitride mai ƙarfi yana sa ya zama ingantaccen kayan rufi don amfani a aikace-aikacen lantarki da ke buƙatar manyan kaddarorin injiniya, kamar a cikin motoci ko a sararin samaniya inda girgiza ke da yawa. Saboda ƙarancin faɗaɗa ta zafi da juriya ga wutar lantarki, zafi yana bazuwa cikin sauri daga allunan zagaye na aluminum nitride, don haka ba sa yin zafi fiye da kima wanda zai sa sassa a cikinsu su gaza aiki – wani abu da ya fi amfani a yanayin girgiza kamar a dillalan motoci ko a sararin samaniya.

Gudun watsawar zafi har zuwa 170 W/mK a zafin ɗaki da halayen dielectric suna sanya Beryllium Oxide (BeO) ya zama kayan substrate madadin mafi dacewa a yawancin aikace-aikacen semikondakta, yayin da rashin guba ke ba da damar sarrafa shi ba tare da haɗari ko amfani da takardun kariya da ake buƙata ba.

Kananan foda da ƙwayoyin Tokuyama masu ƙarancin gurɓatawa sosai, haɗe da fasahohin kera na musamman don rage nitride, suna taimakawa wajen samar da jikin sintered masu halayen zahiri na musamman, ciki har da ƙarfi mai ƙarfi na injiniya, zaɓuɓɓuka da yawa na ƙarewar saman da matakan daidaito, da kuma kyakkyawan gudanar da zafi.