I-Boron Nitride I-Crucible BN I-Crucible
Umyalelo weMveliso
I-Boron Nitride, ekwabizwa ngokuba yi-BN, i-Hexagonal Boron Nitride (H-BN), kunye ne-Boron Nitride ecinezelwe ngokushushu, yi-ceramic egqwesileyo yokuzithambisa enokumelana namaqondo obushushu aphezulu kwaye igcine isakhono sayo sokuthambisa kwindawo ephezulu yokufunxa.I-AEM ye-Boron Nitride crucibles yenziwe nge-boron nitride ecinezelekileyo engenanto.IHexagonal Boron Nitride (H-BN) iziphatha ngendlela efanayo negraphite ngoomatshini kodwa inika ukuxhathisa okugqwesileyo kombane., kwaye inokuveliswa njengemveliso yokugqibela ye-BN ngokuthe ngqo njenge-crucible, isikhephe, ukutyabeka, njl.
Iimpawu eziphambili
I-Boron nitride ine-insulation elungileyo yombane, i-thermal conductivity, ukuzinza kweekhemikhali, kwaye akukho ndawo icacileyo yokunyibilika.Ubushushu bokusetyenziswa kakhulu kwi-0.1MPA nitrogen inokufikelela kwi-3000 °C, kwindawo yokunciphisa engathathi hlangothi, inokumelana nobushushu ukuya kuma-2000 °C, kwaye ubushushu bokusetyenziswa kwenitrogen kunye ne-argon bunokufikelela kwi-2800 °C, kwaye ukuzinza kwi-oxygen emoyeni ihlwempuzekile, kwaye ubushushu bokusebenzisa bungaphantsi kwe-1000 °C.I-coefficient yokwandiswa kwe-hexagonal boron nitride ilingana naleyo yequartz, kodwa i-thermal conductivity iphindwe kalishumi kune-quartz.
Ukongeza, i-hexagonal boron nitride ayinyibiliki emanzini abandayo, kwaye xa amanzi ebilisiwe, i-hydrolysis icotha kakhulu kwaye ivelisa inani elincinci le-boric acid kunye ne-ammonia.Ayisebenzi ngeasidi ebuthathaka kunye nesiseko esomeleleyo kwiqondo lobushushu begumbi, inyibilika kancinane kwiasidi eshushu, kwaye ifuna ukunyangwa nge-sodium hydroxide enyibilikisiweyo kunye ne-potassium hydroxide ukuze ibole.
| Ifomula yoMdibaniso | BN | |
| Ubunyulu | >99.9% | |
| Ubunzima beMolekyuli | 24.82 | |
| Indawo yokunyibilika | 2973 °C | |
| Ukuxinana | 2.1 g/cm3 (h-BN);3.45 g/cm3 (c-BN) | |
| Ukunyibilika kwi-H2O | Ayinyibiliki | |
| Mohs Ubunzima | 2 | |
| Amandla e-Flexural | 35 Mpa | |
| I-Coefficient yoKwandiswa kweThermal | 2.0 x 10-6/K | |
| I-Thermal Conductivity kwi-20℃ | 40 W/mk | |
| Ubushushu bokusebenza obuninzi | I-Oxidizing | 900℃ |
| Vacuum | 1900℃ | |
| Inert | 2100℃ | |
| Refractive Index | 1.8 (h-BN);2.5 (c-BN) | |
| Ukuxhathisa koMbane | 13 ukuya 15 10x Ω-m | |
| Umthamo | 25ml, 55ml, 75ml, 100ml, 1000ml, kwaye ngokwezifiso | |
Isicelo seMveliso
I-Boron nitride luhlobo lokumelana nobushushu obuphezulu, ukuxhathisa kwi-corrosion, ukuguquguquka okuphezulu kwe-thermal, ukugquma okuphezulu kunye nokusebenza okugqwesileyo kokuthambisa kwemathiriyeli, imeko yangoku ukwenza lula inkqubo, ukunciphisa iindleko zemveliso, ukuphucula ubomi benkonzo yamacandelo yeyona nto isebenzayo ngoku. isikhokelo sophando lwezixhobo ezinjalo.
1 ukunyibilika kweentsimbi ezikhutshiweyo.
(2) Ukusebenzisa ukuxhathisa ubushushu kunye nokukhula kwe-hexagonal boron nitride, i-high-temperature components, i-rocket combustion linings, izikhuselo zokufudumala ze-spacecraft, iijenereyitha zemagnetocurrent, njl.
(3) Ukusebenzisa i-insulation ye-hexagonal boron nitride, isetyenziswa ngokubanzi kwi-high-voltage high-frequency yombane kunye ne-plasma arc insulators kunye ne-insulators ye-heaters ezahlukeneyo, i-tube bushings yokufudumeza kunye nobushushu obuphezulu, i-high-frequency, i-high-voltage insulation kunye iindawo zokuchitha ubushushu, kunye nokusetyenziswa kwe-high-frequency yezixhobo zombane zomlilo.
