Zirconium Boride ufa, ZrB2

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Zirconium Boride ufa, ZrB2

itha kugwiritsidwa ntchito ngati malo otenthetsera kutentha, zovala zosunthira zinthu zolimba, zida zodulira, chitetezo cha thermocouple ndi Makamaka oyenera kugwiritsidwa ntchito ngati malo oyenda ndi mpira


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chilinganizo cha maselo  Zrb2
Nambala ya CAS  12045-64-6
Makhalidwe  imvi mphamvu yakuda
Mfundo metting  3040'C
Kuchulukitsitsa  6. g / cm3.
Ntchito  itha kugwiritsidwa ntchito ngati malo otenthetsera kutentha, zovala zosunthira zinthu zolimba, zida zodulira, chitetezo cha thermocouple ndi Makamaka oyenera kugwiritsidwa ntchito ngati malo oyenda ndi mpira

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Zirconium Diboride
CAS Ayi: 12045-64-6
EINECS Ayi.: 234-963-5
Chilinganizo maselo: ZrB2
Kulemera kwa maselo 112.84
Kuchuluka kwake 4.52g / cm3
Malo osungunuka (3040 ℃)

Ili ndi kuuma kwakukulu ndipo ndi kapangidwe kake kazitsulo kokhala ndi mbali zinayi
Kugwiritsa ntchito

1. Makampani Opanga
ZrB2 zokometsera zingapo ndizoyenera kugwiritsa ntchito zida zopitilira kutentha kwambiri zonyamula ndege zam'mlengalenga ndi zipolopolo za missile chifukwa cha kusungunuka kwawo kwakukulu, kuuma kwakukulu, mayendedwe abwino komanso kuthekera kwabwino kwa ma neutron. Makamaka ndikukula kwachangu kwa rocket ndi missile, kufunika kwa zida zotentha kwambiri za zirconium borate based ceramics ndikofunikira kwambiri. Ndikukula kwa kafukufuku ndi ntchito yopititsa patsogolo ndikusintha kwamakono kwaukadaulo, ndizachidziwikire kuti kafukufuku, kupanga ndi kugwiritsa ntchito mitundu yayikulu ya ZrB2 kudumpha patsogolo pang'ono.

Zirconium diboride (ZrB2) ili ndi malo osungunuka kwambiri, modulus, kulimba kwambiri, kutentha kwambiri kwamagetsi ndi magwiridwe amagetsi, komanso kukana kwamphamvu kwamatenthedwe chifukwa champhamvu yamagetsi. Icho chakhala chinthu chofunikira kwambiri cha ofuna kupanga pazowumba zotentha kwambiri. ZrB2 mankhwala ceramic akhala ankagwiritsa ntchito ngati mkulu-kutentha structural ndi zinchito zipangizo, monga masamba chopangira mphamvu ndi
MUD zamagetsi zamagetsi zamagetsi zamagetsi zamagetsi. Kuphatikiza apo, poyerekeza ndi zida zambiri za ceramic, imakhala ndi magwiridwe antchito amagetsi, ndipo imatha kupanga magawo okhala ndi mawonekedwe osavuta ndi ukadaulo wa waya. Komabe, ZrB2 ili ndi malo osungunuka kwambiri, ovuta panthawi yakukhazikika komanso mphamvu zochepa komanso kulimba, zomwe zimalepheretsa kugwiritsa ntchito malo ovuta kugwira ntchito. Pachifukwa ichi, akatswiri kunyumba ndi akunja achita kafukufuku wambiri pazipangidwe za ZrB2 ndi zinthu zina pogwiritsa ntchito njira zopitilira muyeso zosewerera, kuti athe kukonza zinthu zonsezo. Pepala ili, zopanga za ZrB2 ndikuwongolera kwawo zimawunikidwanso.
2 yotsutsa

ZrB2 ceramic ndi chinthu chabwino kwambiri, chosakanikirana, chomwe chingagwiritsidwe ntchito ngati malaya otentha otentha a thermocouple, kuponyera nkhungu, chitsulo chosungunuka chachitsulo, ndi zina zambiri. muyeso woyenera wamafuta mukamagwira ntchito ngati thermocouple. Thermowell yopangidwa ndi izi ingagwiritsidwe ntchito mosalekeza kwa nthawi yayitali pachitsulo chosungunuka ndi mkuwa. ZerB2 ziwiya zadothi zingagwiritsidwenso ntchito ngati ma antioxidants m'ma refractories. LV Chunyan et al. ananenanso izi powonjezera
ZrB2 kupita ku MgO-C kapena kugwiritsa ntchito mwachindunji ZrB2 monga gulu kapena ufa wosalala. Zimapanga njerwa zokhazikikirako komanso zotayika ndipo zimawonetsa kukana makutidwe ndi okosijeni komanso magwiridwe antchito amoto. Makina olimbana ndi makutidwe ndi okosijeni atha kuwunika motere: B2O3 yopangidwa ndi makutidwe a okosijeni a ZrB2 pamafomu ofunda otentha mgo-b2o3 gawo losungunuka ku MgO-C, poteteza njerwa.
3 maelekitirodi zakuthupi
Low madutsidwe, magetsi dongosolo kusintha ndi elekitironi kusintha. yoyenera kulumikizana ndi zinthu zamagetsi ndi ma elekitirodi chifukwa chotsika kwambiri komanso njira zamagetsi zoyendetsera. Itha kugwiritsidwa ntchito mu elekitirodi ndi kutentha kwapakati pazitsulo zachitsulo. Mu 1994, Feng Dagan adapanga mtundu wa zinthu zamagetsi zamagetsi zamagetsi a ZrB2 ndi graphite, omwe amatha kugwira ntchito m'malo okongoletsa pa 1200 ~ 1600 ℃
Kutentha kukakhala 1 600 ℃, kumatha kufika pafupifupi 70 MV ndipo mphamvu yamagetsi yamagetsi ndi pafupifupi 55 μ V / ℃. Zotsatira zikuwonetsa kuti mphamvu yamagetsi yamagetsi ndi ntchito imodzi yamtengo wapatali yolumikizana bwino. Kubwereza kwa mphamvu zamagetsi ndi 1% ~ 1.5% ya kutentha komwe kumayesedwa pambuyo poyesedwa kangapo mumlengalenga wa okosijeni. Kusintha kwakukulu kwa mphamvu zamagetsi ndi 0,5% ~ 1% ya kutentha komwe kumayesedwa munthawi yochepa kuposa 3 h. Itha kugwiritsidwa ntchito pozindikira motsatizana munthawi zina zapadera pomwe ma thermocouple achitsulo ndi ma thermometer a radiation siabwino. Monga chinthu chabwino cha thermocouple.

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