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I-Boron Nitride

I-Boron Nitride

Specification

lencazelo

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Igama lesiTshayina: i-hexagonal boron nitride, i-boron nitride

Igama lesiNgesi: Boron Nitride

Ifomula yemolekyuli: BN

Ubunzima bemolekyuli: 24.18 (ngokobunzima beathom bamazwe ngamazwe ngowe-1979)

Umgangatho womgangatho: 98%, 99%

Umgangatho woShishino: Q/YLH001-2006

Ikhowudi yeHS: 2850001200

Inombolo ye-CAS: 10043-11-5

Ubushushu obuphantsi be-boron nitride budityaniswa ngokuxuba iboraksi kunye ne-ammonium chloride kwisithando somlilo esisabelayo kwiqondo lobushushu le-1000-1200°C. I-boron nitride yobushushu obuphezulu idityaniswe ngokuxuba i-boric acid kunye ne-melamine ngokusebenzisa i-high-temperature calcination reaction kwi-1700.

Iziphumo zomkhiqizo

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IBoron nitride yikristale eyenziwe ngeeathom zenitrogen kunye neeathom zeboron. Ulwakhiwo lwekristale lwahlulwe lwaba: i-hexagonal boron nitride (HBN), ivale i-hexagonal boron nitride (WBN) kunye ne-cubic boron nitride, phakathi kwayo i-hexagonal boron nitride crystals Isakhiwo sinesakhiwo esifanayo segraphite, ebonisa umgubo omhlophe okhululekile. , i-lubricated, kulula ukufunxa umswakama, kunye nokukhanya kobunzima, ngoko kuthiwa "i-graphite emhlophe".

Ubuninzi bethiyori yi-2.27g / cm3, ubunzima obuthile yi-2.43, kunye nobunzima be-Mohs yi-2.

I-hexagonal boron nitride ine-insulation elungileyo yombane, i-thermal conductivity, ukuzinza kweekhemikhali, akukho ndawo icacileyo yokunyibilika, ukumelana nobushushu ukuya kwi-3000 ℃ kwi-0.1MPA nitrogen, ukumelana nobushushu ukuya kwi-2000 ℃ kwindawo yokunciphisa engathathi hlangothi, kwi-nitrogen kunye nobushushu bokusebenza kwi-argon bunokufikelela. I-2800 ℃, kwaye uzinzo kwi-atmosphere ye-oxygen imbi, kwaye ubushushu bokusebenza bungaphantsi kwe-1000 ℃.

I-coefficient yokwandiswa kwe-hexagonal boron nitride ilingana naleyo yequartz, kodwa i-thermal conductivity iphindwe kalishumi kune-quartz. Ikwanayo nokuthambisa okulungileyo kwiqondo lobushushu eliphezulu. Sesona sithambisi siqinileyo sobushushu obuphezulu esinamandla okufunxa ineutron, iipropathi zekhemikhali ezizinzileyo, kunye nokungangeni kwekhemikhali phantse kuzo zonke iintsimbi ezityhidiweyo.

I-hexagonal boron nitride ayinyibiliki emanzini abandayo. Xa amanzi ebilisiwe, i-hydrolyzes kancinane kwaye ivelise inani elincinci le-boric acid kunye ne-ammonia. Ayinakusabela nge-acids ebuthakathaka kunye neziseko ezinamandla kwiqondo lokushisa. Iyanyibilika kancinane kwiiasidi ezishushu. Sebenzisa i-sodium hydroxide etyhidiweyo, i-potassium hydroxide processing ukubola. Inamandla okuthintela ukubola kwiiasidi ezahlukeneyo ze-inorganic, iialkali, izisombululo zetyuwa kunye nezinyibilikisi eziphilayo.

Izikhokelo zobugcisa

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Iiparamitha zeBoron Nitride

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1. Ukumelana nobushushu obuphezulu: i-sublimation kwi-3000 ℃, amandla ayo aphindwe kabini kubushushu begumbi kwi-2 ℃, kwaye ayiyi kuphuka xa ipholile kwiqondo lobushushu begumbi kangangezihlandlo ezininzi kwi-1800 ℃, kwaye ayiyi kuthamba kwi-1500 ℃ igesi engasebenziyo.

2. I-Thermal conductivity ephezulu: Imveliso ecinezelekileyo yi-33W / MK Njengentsimbi ecocekileyo, yinto ehambisa i-thermal kwimpahla ye-ceramic ngaphezu kwe-530 °C.

3. I-coefficient yokwandisa i-thermal ephantsi: I-coefficient yokwandiswa kwe-2 × 10-6 yesibini kuphela kwiglasi ye-quartz, eyona nto incinci phakathi kweekeramics. Ukongeza, ine-conductivity ephezulu ye-thermal, ngoko inokumelana nokutshatyalaliswa kwe-thermal.

4. Iimpawu zombane ezigqwesileyo: i-insulation high-high-temperature insulation, i-1014Ω-cm kwi-25 ° C, kunye ne-103Ω-cm kwi-2000 ° C. Yinto engcono yokushisa okuphezulu kwe-insulating material kwi-ceramics, kunye ne-voltage ye-breakdown ye-3KV / MV kunye nokulahlekelwa kwe-dielectric ephantsi kwe-108HZ. Xa i-2.5 × 10-4, i-dielectric constant yi-4, kwaye inokuhambisa i-microwave kunye nemitha ye-infrared.

5. Ukumelana ne-corrosion efanelekileyo: ngeentsimbi eziqhelekileyo (intsimbi, ubhedu, i-aluminiyam, ilothe, njl.njl.), iintsimbi zomhlaba ezinqabileyo, iintsimbi ezixabisekileyo, izixhobo ze-semiconductor (i-germanium, i-silicon, i-potassium arsenide), iglasi, iityuwa ezityhidiweyo (ikristale ilitye, i-fluoride ; i-slag), i-acids ye-inorganic, i-alkali ayiphenduli.

6. I-coefficient ephantsi ye-friction: U-U ngu-0.16, onganyuki kwiqondo lokushisa eliphezulu. Iyakwazi ukumelana nobushushu obuphezulu kunemolybdenum disulfide kunye negraphite. Iatmosfera ene-oxidizing ingasetyenziswa ukuya kuthi ga kwi-900 °C, kwaye ivacuum ingasetyenziswa ukuya kuthi ga kwi-2000 °C.

7. Ukucoceka okuphezulu: umxholo wokungcola ungaphantsi kwe-10PPM, kwaye umxholo wayo we-B mkhulu kune-43.6%.

8. Ukucutshungulwa: Ubunzima bayo yi-Mohs 2, ngoko ke inokucutshungulwa ibe ngamacandelo ngokuchaneka okuphezulu ngeendlela zokugaya ngokubanzi.

Ubume be sicelo

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1. I-Boron nitride yinto enezinto ezingenayo i-non-toxic, ukumelana nobushushu obuphezulu, ukuxhathisa kwe-corrosion, i-conductivity ephezulu ye-thermal, i-insulation ephezulu kunye neempawu ezibalaseleyo zokuthambisa.

2. Zombini i-insulator yombane kunye nomqhubi we-thermal, i-electrolysis ekhethekileyo kunye nezinto ezichasayo phantsi kweemeko eziphezulu zokushisa, i-insulators ye-high-voltage high-frequency umbane kunye ne-plasma arcs.

3. Ingasetyenziselwa njengento eqinileyo ye-doping ye-semiconductors, kunye negrisi echasene ne-oxidation okanye amanzi.

4. I-lubricant ephezulu yokushisa kunye ne-ejenti yokukhululwa kwe-mold yeemodeli, i-boron nitride powder ingasetyenziselwa njenge-arhente yokukhupha iintsimbi zeglasi, kunye ne-ejenti yokukhulula i-mold yeglasi kunye nokubumba isinyithi.

5. I-superhard material ecutshungulwa yi-boron nitride ingenziwa kwizixhobo zokusika ngesantya esiphezulu kunye ne-drill bits yokuhlola i-geological kunye ne-oyile yokugaya.

6. Izinto zesakhiwo se-athom ye-athom, imilomo yeenqwelo-moya kunye neenjini ze-rocket, izinto zokupakisha zokuthintela imitha ye-neutron, kunye nezixhobo zokukhusela ubushushu kwi-aerospace.

7. Ayinatyhefu kwaye ayinabungozi kwaye ine-lubricity, enokusetyenziswa njenge-filler yezithambiso.

8. Ngokuthatha inxaxheba kwe-catalyst, inokuguqulwa ibe yi-cubic boron nitride enzima njengedayimane emva kokushisa okuphezulu kunye nokunyangwa koxinzelelo oluphezulu.

9. Yenza iinqanawa ezahlukahlukeneyo zokukhupha i-evaporation ye-capacitor film aluminium plating, i-tube yomfanekiso we-aluminium plating, ukubonisa i-aluminium plating, njl.

10. I-desiccant yokutywinwa kwe-Heat-seal for transistors kunye ne-additives ye-polymers ezifana nee-resin zeplastiki.

11. Iintlobo ezahlukeneyo ze-laser anti-counterfeiting aluminium plating, i-trademark ye-bronzing materials, iileyibhile ezahlukeneyo ze-cigarette, iilebhile zebhiya, iibhokisi zokupakisha, iibhokisi zokupakisha ze-cigarette, njl.


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