Boron Nitride

Ƙayyadaddun bayanai

samfurin description

Sunan Sinanci: boron nitride hexagonal, boron nitride

Sunan Ingilishi: Boron Nitride

Tsarin kwayoyin halitta: BN

Nauyin kwayoyin halitta: 24.18 (bisa ga 1979 nauyin atomic na duniya)

Matsayin inganci: 98%, 99%

Matsayin kasuwanci: Q/YLH001-2006

Lambar kwanan wata: 2850001200

Lambar CAS: 10043-11-5

Ƙananan zafin jiki boron nitride an haɗa shi ta hanyar haɗa borax da ammonium chloride a cikin tanderun amsawa a zafin jiki na 1000-1200 ° C. Babban zafin jiki boron nitride an haɗa shi ta hanyar haɗa boric acid da melamine ta hanyar ƙimar ƙima mai zafi a 1700.

Product Features

Boron nitride kristal ne wanda ya ƙunshi atom ɗin nitrogen da zarra na boron. An raba tsarin crystal zuwa: hexagonal boron nitride (HBN), na kusa-cubic boron nitride (WBN) da kuma cubic boron nitride, daga cikinsu akwai lu'ulu'u na boron nitride mai siffar siffar siffar siffar siffar siffar siffar siffar siffar siffar siffar siffar siffar foda, wanda ke nuna farin foda mai sako-sako. , lubricated, mai sauƙin sha danshi, da haske cikin nauyi, don haka ana kiransa "farar graphite".

Matsakaicin ka'idar shine 2.27g/cm3, takamaiman nauyi shine 2.43, kuma taurin Mohs shine 2.

Hexagonal boron nitride yana da ingantaccen rufin lantarki, ƙarancin zafin jiki, kwanciyar hankali na sinadarai, babu madaidaicin narkewa, juriya mai zafi zuwa 3000 ℃ a cikin 0.1MPA nitrogen, juriya mai zafi zuwa 2000 ℃ a cikin yanayin rage tsaka tsaki, a cikin nitrogen da zafin jiki na aiki a argon na iya isa. 2800 ℃, da kwanciyar hankali a oxygen yanayi ne matalauta, da kuma aiki zafin jiki ne a kasa 1000 ℃.

Matsakaicin faɗaɗa na boron nitride hexagonal yayi daidai da na ma'adini, amma yanayin zafi ya ninka na ma'adini sau goma. Hakanan yana da kyau mai kyau a yanayin zafi mai yawa. Yana da kyakkyawan madaidaicin mai mai zafi mai ƙarfi tare da ƙarfin ɗaukar neutron mai ƙarfi, kaddarorin sinadarai masu tsayayye, da rashin kuzarin sinadarai zuwa kusan duk narkakken karafa.

Hexagonal boron nitride ba ya narkewa a cikin ruwan sanyi. Lokacin da aka tafasa ruwan, yana yin ruwa a hankali a hankali kuma yana samar da ɗan ƙaramin boric acid da ammonia. Ba ya amsawa tare da raunin acid da tushe mai ƙarfi a cikin zafin jiki. Yana da ɗan narkewa a cikin zafi acid. Yi amfani da narkakkar sodium hydroxide, sarrafa potassium hydroxide don bazuwa. Ya na da babba anti-lalata ikon zuwa daban-daban inorganic acid, alkalis, gishiri mafita da Organic kaushi.

Alamar fasaha

Boron Nitride Parameters

1. High zafi juriya: sublimation a 3000 ℃, da ƙarfi ne 2 sau cewa na dakin zafin jiki a 1800 ℃, kuma shi ba zai karya a lokacin da sanyaya zuwa dakin zafin jiki da dama a 1500 ℃, kuma ba zai yi laushi a 2800 ℃ a. inert gas.

2. High thermal conductivity: The zafi-matsa samfur ne 33W / MK Kamar tsantsa baƙin ƙarfe, shi ne thermally conductivity abu a yumbu kayan sama 530 ° C.

3. Low thermal expansion coefficient: Ƙwararren haɓakawa na 2 × 10-6 shine na biyu kawai zuwa gilashin ma'adini, wanda shine mafi ƙanƙanci tsakanin yumbura. Bugu da ƙari, yana da babban ƙarfin wutar lantarki, don haka yana da kyakkyawan juriya na thermal.

4. Kyawawan kaddarorin lantarki: kyawawan kayan zafi mai kyau, 1014Ω-cm a 25 ° C, da 103Ω-cm a 2000 ° C. Yana da mafi kyawun kayan rufewa mai zafi a cikin yumbu, tare da raguwar ƙarfin lantarki na 3KV/MV da ƙarancin ƙarancin dielectric na 108HZ. Lokacin da yake 2.5×10-4, dielectric akai-akai shine 4, kuma yana iya watsa microwave da infrared haskoki.

5. Good lalata juriya: tare da general karafa (baƙin ƙarfe, jan karfe, aluminum, gubar, da dai sauransu), rare duniya karafa, daraja karafa, semiconductor kayan (germanium, silicon, potassium arsenide), gilashin, narkakkar salts (crystal dutse, fluoride , slag), inorganic acid, alkalis ba su amsa.

6. Low coefficient na gogayya: U ne 0.16, wanda ba ya karuwa a high zafin jiki. Ya fi juriya ga babban zafin jiki fiye da molybdenum disulfide da graphite. Za'a iya amfani da yanayi mai iskar oxygen har zuwa 900 ° C, kuma ana iya amfani da injin din har zuwa 2000 ° C.

7. Tsabta mai girma: abun cikin najasa bai kai 10PPM ba, kuma abun cikin B ya fi 43.6%.

8. Machinability: Taurinsa shine Mohs 2, don haka ana iya sarrafa shi cikin sassa tare da madaidaicin madaidaicin ta hanyar hanyoyin sarrafa kayan gabaɗaya.

Bigiren aikace-aikace

1. Boron nitride wani abu ne wanda ba mai guba ba, babban juriya na zafin jiki, juriya na lalata, high thermal conductivity, babban rufi da kyawawan kayan lubricating.

2. Yana da nau'i mai mahimmanci na lantarki da kuma mai kula da thermal, electrolysis na musamman da kayan juriya a ƙarƙashin yanayin zafi mai zafi, masu ba da wutar lantarki don ƙananan wutar lantarki mai girma da kuma arcs na plasma.

3. Ana iya amfani dashi azaman kayan doping mai ƙarfi-lokaci don semiconductor, da man shafawa wanda ke tsayayya da iskar shaka ko ruwa.

4. High-zazzabi mai ma'ana da mold saki wakili ga model, boron nitride foda kuma za a iya amfani da a matsayin saki wakili ga gilashin beads, da mold saki wakili ga gilashin da karfe gyare-gyare.

5. Za a iya samar da kayan aiki mai ƙarfi da boron nitride ke sarrafa su su zama kayan aikin yankan sauri masu sauri da ƙwanƙwasa don binciken ƙasa da haƙon mai.

6. Kayayyakin tsarin injina na atomatik, nozzles na jirgin sama da injunan roka, kayan marufi don hana hasken neutron, da kayan kariya masu zafi a cikin sararin samaniya.

7. Ba shi da guba kuma ba shi da lahani kuma yana da lubricity, wanda za'a iya amfani dashi azaman filler don kayan shafawa.

8. Tare da sa hannu na mai kara kuzari, ana iya canza shi zuwa cubic boron nitride mai wuya kamar lu'u-lu'u bayan babban zafin jiki da maganin matsa lamba.

9. Yi daban-daban evaporation jiragen ruwa for capacitor film aluminum plating, hoto tube aluminum plating, nuni aluminum plating, da dai sauransu.

10. Heat-sealing desiccant ga transistor da additives ga polymers kamar roba resins.

11. Daban-daban Laser anti-jebu aluminum plating, alamar kasuwanci bronzing kayan, daban-daban taba taba, giya labels, marufi kwalaye, taba marufi kwalaye, da dai sauransu.