Zirconium Boride Powder, ZrB2

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Zirconium Boride Powder, ZrB2

hiki ke hoʻohana ʻia ma ke ʻano he mahana kiʻekiʻe aerospace, nā mea paʻa paʻa, nā mea hana ʻoki, pale thermocouple thermocouple pale a me nā mea hoʻoheheʻe uila electrolytic o ka electrode material. Kūpono kūpono foruse ma ke ʻano he papa no ka ʻōwili ʻana i ka poepoe


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haʻilula haʻilula  Zrb2
Helu CAS  12045-64-6
Nā ʻano  mana ʻeleʻele hina
Kuhi metting  3040'C
Ka mānoanoa  6. Bi / cm3
Hoʻohana  hiki ke hoʻohana ʻia ma ke ʻano he mahana kiʻekiʻe aerospace, nā mea paʻa paʻa, nā mea hana ʻoki, pale thermocouple thermocouple pale a me nā mea hoʻoheheʻe uila electrolytic o ka electrode material. Kūpono kūpono foruse ma ke ʻano he papa no ka ʻōwili ʻana i ka poepoe

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COA

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COA

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COA

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Zirconium Diboride
ʻAʻole CAS: 12045-64-6
EINECS No.: 234-963-5
Hoʻohālikelike Molecular: ZrB2
Kaupaona Molecular 112.84
Ke kiʻekiʻena 4.52g / cm3
Kuhi hoʻoheʻe (3040 ℃)

He paʻakikī kiʻekiʻe kona a he ʻano metala kuina me ka hanana hexagonal
Palapala noi

1. ʻOihana Aerospace
Kūpono loa nā hui ZrB2 series no ka noi ʻana i nā mea hana ultra-kiʻekiʻe mehana no ka mokulele supersonic spacecraft a me nā pū pahi missile no ko lākou wahi hoʻoheheʻe kiʻekiʻe, paʻakikī kiʻekiʻe, conductivity maikaʻi a me ka hiki ke mālama neutron maikaʻi. ʻOi pū me ka hoʻomohala wikiwiki ʻana o ka ʻenehana rocket a me missile, ʻoi aku ka wikiwiki o ka noi no nā mea kūkulu kiʻekiʻe o ka zirconium borate Me ka hoʻonui ʻana o ka hana noiʻi a me ka hoʻomohala ʻana a me ka hoʻomaikaʻi mau ʻana o ka ʻenehana hana, maopopo leʻa e lele i mua ka noiʻi, ka hana ʻana a me ka noi ʻana o ka ZrB2 series composite i kahi wikiwiki hou.

ʻO Zirconium diboride (ZrB2) kahi kiko hoʻoheheʻe nui, modulus kiʻekiʻe, paakiki kiʻekiʻe, conductivity wela kiʻekiʻe a me ka conductivity uila, a me ke kūpale kūpikipiki maikaʻi maikaʻi ma muli o kāna paʻa kemika ikaika. Ua lilo ia i mea moho moho kūpono loa no nā keramika wela kiʻekiʻe. ZrB2 pālolo huahana i hoʻohana ākea hoʻohana like kiʻekiʻe-wela kūkulu a me ka ooieoeiiaeuiiai mea, e like me mīkini peahi uila a me
Nā electrodes hanauna mana MHD i ka ʻoihana mokulele. Hoʻohui ʻia, hoʻohālikelike ʻia me nā mea pālolo he nui, ʻoi aku ka maikaʻi o ka lawe uila ʻana, a hiki ke hana i nā ʻāpana me nā ʻano paʻakikī e ka ʻenehana ʻoki uea. Eia nō naʻe, he wahi hoʻoheheʻe kiʻekiʻe ko ZrB2, paʻakikī ke hewa a ʻano haʻahaʻa a paʻakikī hoʻi, e kaupalena ana i kāna noi i kahi ʻoihana hana paʻakikī. No kēia kumu, ua hana nui ka poʻe ʻimi naʻau ma ka home a me kahi ʻāina ʻē i ka ZrB2 hui me nā mea ʻē aʻe ma o ka hoʻohana ʻana i nā kaʻina hana sinter kiʻekiʻe, i mea e hoʻomaikaʻi ai i nā waiwai ākea o nā mea. I kēia pepa, loiloi ʻia nā mea hoʻohui ZrB2 a me kā lākou hoʻonui ʻana.
2 refractory

ʻO ZrB2 pālolo kahi mea maikaʻi, kūikawā pono kūikawā, hiki ke hoʻohana ʻia me ka lima pale thermocouple kiʻekiʻe o ka mahana, hoʻoheheʻe hoʻoheheʻe, ipu hao metallurgical, a pēlā aku. i ke ana wela kūpono ke hana ʻia e like me ka thermocouple. Hiki ke hoʻohana mau ʻia ka thermowell o kēia mea no ka manawa lōʻihi i ka hao hoʻoheheʻe ʻia a me ke keleawe. Hiki ke hoʻohana pū ʻia nā kinikini ZrB2 ma ke ʻano he antioxidants i nā refactories. LV Chunyan et al. ua hōʻike ʻia ma ka hoʻohui ʻana
ZrB2 i MgO-C refractory a i ʻole hoʻohana pololei ʻana iā ZrB2 ma ke ʻano he hōʻuluʻulu a he lepo paha. Hana ia i brick a me nā castable a hōʻike i ke kūpaʻa oxidation maikaʻi loa a me nā hana kūpaʻa ahi. Hiki i ka ʻōnaehana kūpale kūpale ke beanalyzed penei: B2O3 i hoʻokumu ʻia e ZrB2 oxidation ma mediumforms mgo-b2o3 pae hoʻoheheʻe ʻia i MgO-C, no laila ke pale nei i ka pōhaku lepo.
3 mea uila
Low conductivity, uila hoʻololi ʻōnaehana o electron hoʻololi. kūpono no nā mea pili a me nā pono uila no ka haʻahaʻa o ka resistivity a me ka hana conduction uila. Hiki ke hoʻohana ʻia i ka electrode a me ka mehana wela wela o ka thermocouple metala. I ka makahiki 1994, ua hoʻomohala ʻo Feng Dagan i kahi ʻano thermoelectric o ZrB2 a me ka graphite, i hiki ke hana i ka lewa hoʻoheheʻe ma 1200 ~ 1600 ℃
Ke hiki i ka mahana o 1 600 ℃, hiki i 70 70 a ʻo ka nui o ka mana thermoelectric ma kahi o 55 μ V / ℃. Hōʻike nā hopena i ka hopena thermoelectric kahi hana waiwai hoʻokahi me ka linearity maikaʻi. ʻO ka hana hou ʻana o ka hiki thermoelectric ka 1% ~ 1.5% o ke ana wela i ana ʻia ma hope o nā hoʻokolohua ʻana ma ka lewa ʻehena. ʻO ka hoʻololi kiʻekiʻe loa o ka hiki thermoelectric ka 0.5% ~ 1% o ke ana wela i kahi manawa pōkole no 3 h. Hiki ke hoʻohana ʻia no ka ʻike kū aʻe i kekahi mau hanana kūikawā kahi kūpono ʻole o ka thermocouple metala a me ka thermometer radiation. Ma ke ʻano he pono thermocouple.

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