ʻO Kina ka mea kūʻai aku Cerium Hexaboride Powder CAS 12008-02-5 CeB6 Powder Price Cerium Boride

ʻIke pōkole:

Nā hiʻohiʻona oCerium Boride:

Waiwai: ʻO Cerium hexaborate (CeB6, i ʻike ʻia ʻo cerium borate, CeBix, CEBIX, i kekahi manawa i kākau ʻia ʻo CeB) he mea hoʻohuihui inorganic. He ʻano CsCl ka Cerium hexaborate (CeB6) (no ka ʻōnaehana kristal cubic maʻalahi, me nā pōʻai nui e hōʻike ana i ka mea Ce). ʻO ka ʻokoʻa ʻo ia ka B6 octahedral clusters i ke kūlana o Cl, ʻoiai ʻo Ce e noho ana i ke kūlana o Cs.

He mea refractory ceramic me ka haʻahaʻa hana hana, e hana ia i kekahi o nā mea cathode ike me ka kiʻekiʻe electron emissivity, a me ka mea paa loa i loko o ka vacuum. ʻO ka mahana hana maʻamau o ka cerium hexaborate he 1450 ° C. ʻO ka Cerium hexaborate, e like me ka lanthanum hexaborate, e lohi mālie i ka wā o ka hana cathode.

Hiki i ka CeB6 cathode ke mālama i kona ʻano maikaʻi loa no kahi manawa lōʻihi ma kahi mahana hana o 1850 K, e hopena i kahi ola lōʻihi. I kēia manawa, ma muli o ka 30% ʻoi aku ka lohi ma mua o ka lanthanum borate, ʻoi aku ka paʻakikī o ka uhi ʻana o ka cathode thermal o ka cerium borate ma mua o ka lanthanum borate.

ʻIkepili ʻenehana o Cerium Boride:

Ka hoʻohana ʻana i ka Cerium Boride:

Hoʻohana nui ʻia ka Cerium boride ma ke ʻano he uhi no nā cathodes wela, a i ʻole nā ​​cathodes wela i haku pono ʻia me nā kristal hexaborate cerium. Hoʻohana pinepine ʻia ka Cerium hexaboride (CeB6) a me ka lanthanum hexaboride (LaB6) ma ke ʻano he uhi cathode kiʻekiʻe. He haʻahaʻa ka hana o ka Hexaborides, ma kahi o 2.5 eV, a loaʻa iā ia kekahi ʻae ʻana i ka hoʻohaumia cathode. He ha'aha'a ko nā cathodes Cerium boride ma mua o ka lanthanum boride ma 1700 K, akā, lilo ia i mea pa'a ma 1850 K a 'oi aku ka nui o ka evaporation ma luna o kēlā mahana.

He 50% ka lōʻihi o ke ola ʻana o ka cathode Cerium boride ma mua o ka lanthanum boride ma muli o kona kū kūʻē ʻana i ka pollution kalapona. ʻO ka ʻōlinolino o kahi cathode boride he ʻumi manawa i ko ka cathode tungsten, a ʻo kona ola ʻana he 10-15 manawa ko ka cathode tungsten. Ua hōʻike ʻia kekahi mau hoʻokolohua hoʻokolohua ʻoi aku ka hoʻomanawanui ʻana o CeB6 i nā hopena maikaʻi ʻole o ka pollution kalapona ma mua o LaB6. Hoʻohana maʻamau ʻia lākou i nā kula e like me nā microscopes electron, nā pahu microwave, etching electron beam, electron beam welding, X-ray tubes, a me nā laser electron free.

ʻO Cerium hexaboride (CeB6) kahi mea cathode me ka emissivity electron kiʻekiʻe loa ma muli o kāna hana haʻahaʻa haʻahaʻa. ʻOi aku ka pale ʻana i ka pollution kalapona a ʻoi aku ka lōʻihi o ke ola ma mua o nā cathodes lanthanum borate. Hoʻohana nui ʻia ia i nā kula e like me ka microscopy electron, microwave tubes, electron beam etching, electron beam welding, X-ray tubes, a me nā laser electron free. Ua hoʻohana maikaʻi ʻia nā kristal hexaborate Cerium i nā microscopes electron scanning desktop, e lilo ana i mau mea filament maikaʻi a paʻa.

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