ʻO Tungsten ka helu hoʻoheheʻe kiʻekiʻe loa o nā metala āpau a me kahi modulus kiʻekiʻe o ka elasticity. Mahalo i kāna mau mea wela koʻikoʻi, hiki i ka tungsten ke pale maʻalahi i nā mahana kiʻekiʻe loa. Kūʻokoʻa ʻo Tungsten no kona kiʻekiʻe kiʻekiʻe a no laila ua hoʻohana ʻia i ka nui o nā noi ʻoihana e like me ka ʻoihana mokulele a me ka aerospace, ka ʻenehana uila uila, a me ka uila.
ʻO ka noi mua a Tungsten no nā makahiki he 100 e like me ka filament i nā ʻōpuʻu kukui incandescent. Hoʻopaʻa ʻia me ka liʻiliʻi o ka potassium-aluminum silicate, hoʻopaʻa ʻia ka pauka tungsten i kahi wela kiʻekiʻe e hana i ka filament uea i waenakonu o nā ʻōpuʻu kukui e hoʻomālamalama i nā miliona o nā hale a puni ka honua.
Ma muli o ka hiki i ka tungsten ke mālama i kona ʻano i nā wela kiʻekiʻe, ua hoʻohana ʻia nā filament tungsten i nā ʻano hana like ʻole o ka hale, me nā kukui, nā kukui, nā mea hoʻomehana i nā umu uila, nā microwaves, a me nā paipu x-ray.
ʻO ka hoʻomanawanui ʻana o ka metala i ka wela nui he mea kūpono ia no nā thermocouple a me nā pilina uila i loko o nā kapuahi uila a me nā mea hana wili. Hoʻohana pinepine ʻia nā noi e koi ana i ka nuipaʻa koʻikoʻi, a i ʻole ke kaumaha, e like me nā counterweights, nā lawaiʻa lawaiʻa, a me nā ihe e hoʻohana pinepine ai i ka tungsten ma muli o kona mānoanoa.
Me ka maʻemaʻe o> 99.98%, hoʻohana nui ʻia i nā ʻāpana semiconductor ion implantation, nā mea hoʻomehana, nā pahuhopu sputtering, nā electrodes, nā ʻāpana hoʻolālā kiʻekiʻe, nā crucibles crystal, counterweights, pale radiation, ka wela wela a me nā manawa ʻē aʻe.
Hoʻopuka mākou i kā mākou huahana tungsten mai ka pauka metala i ka huahana i hoʻopau ʻia. Hoʻohana wale mākou i ka tungsten oxide maʻemaʻe e like me ke kumu kumu. Hāʻawi mākou i nā huahana tungsten maʻemaʻe kiʻekiʻe me ka maʻemaʻe a hiki i 8N.
ʻO ka tungsten honua laha ʻole (W-REO)
Oxidized rare earth tungsten (WLa, Wce, WTh, WY a me nā mea hoʻohui honua ʻē aʻe) ʻoi aku ka ikaika a me ka hana hoʻokuʻu kūikawā ma mua o ka tungsten maʻemaʻe, a hoʻohana nui ʻia i nā electrodes like ʻole: TIG welding, plasma welding, plasma welding, plasma spray coating, ka hoʻoheheʻe plasma a me ka hoʻokuʻu kinoea kumu kukui; hoʻohana pū ʻia i nā ʻāpana hoʻolālā kiʻekiʻe.
ʻO ka Lanthanated tungsten kahi mea i hoʻopaʻa ʻia i ka lanthanum doped tungsten alloy. Ke hoʻohui ʻia ka lanthanum oxide i hoʻopuehu ʻia, hōʻike ka tungsten lanthanated i ka hoʻoikaika ʻana i ka wela, ka hana wela, ke kūpaʻa kolo, a me kahi mahana recrystallization kiʻekiʻe. ʻO kēia mau waiwai koʻikoʻi e kōkua i nā electrodes tungsten lanthanated e hoʻokō i ka hana ʻokoʻa i ka hiki ke hoʻomaka arc, arc erosion resistance, arc stability and controllability.
Loaʻa iā mākou ka mana e hana i ka W-La, W-Ce, WY, W-Th a me nā mea ʻē aʻe o ka tungsten honua oxidized. Hoʻohana nui ʻia lākou e like me nā electrodes a me nā cathodes i nā noi he nui. ʻO nā oxides i hoʻohui ʻia i ka tungsten ua hoʻonui i ka mahana recrystallization a, i ka manawa like, hoʻonui i ka pae hoʻokuʻu ma ka hoʻohaʻahaʻa ʻana i ka hana hana electron o ka electrode tungsten.
Tungsten-doped Potassium ( Tungsten–potassium a i ʻole WK)
ʻO ka potassium (K) -doped W aia nā nano-bubbles ma ke kauoha o ka ppm hiki ke keakea i ka neʻe ʻana o nā palena palaoa a me nā dislocations, alakaʻi lākou i ka hoʻoikaika ʻana i kahi wela kiʻekiʻe a me ka hoʻopaʻa ʻana o ka recrystallization a hiki ke hana i nā hua ʻoi aku ka maikaʻi e hoʻohālikelike ʻia me ka W. ʻO ka hoʻomaʻemaʻe hoʻi e alakaʻi i ka hoʻoikaika a me ka paʻakikī. Eia kekahi, ua manaʻo ʻia e hiki ke hoʻopaʻa ʻia ka embrittlement neutron-irradiation-induced i ka K-doped W i hoʻohālikelike ʻia me W maʻemaʻe no ka mea aia i loko o ka nui o nā palena palaoa e hana ana e like me nā poho no nā hemahema i hana ʻia e ka neutron irradiation.
Ua manaʻo ʻia ʻo Tungsten (W) ʻo ia kekahi o nā moho hoʻohiki maikaʻi loa ma waena o nā mea pili i ka plasma (PFMs) ma muli o kāna mau waiwai kūʻokoʻa, e like me ka haʻahaʻa hydrogen isotope paʻa, haʻahaʻa sputtering hua a me kahi kiʻekiʻe heheʻe. Eia nō naʻe, ʻo nā drawbacks, e like me kahi kiʻekiʻe ductile-to-brittle transition temperature (DBTT), brittleness i ka haʻahaʻa haʻahaʻa a me ka brittleness ma muli o ka neutron irradiation he mea keakea i nā noi ʻenekinia o tungsten. ʻO nā hoʻolālā o nā mea hoʻohui W-based me nā dopants ductile kahi ala kūpono e hoʻēmi ai i kēia mau hemahema. Ua hōʻike ʻo Potassium doping i kona pono i ka hoʻopau ʻana i ka recrystallization lua a me ka mālama ʻana i ka ulu ʻana o ka palaoa a hiki i 1900 ° C i nā uea lahilahi tungsten, a no laila ke hōʻike nei i nā waiwai kupaianaha i nā mahana kiʻekiʻe. Lilo ka mea nui o ka tungsten potasium-doped (K-doped) i moho hoihoi no ka mea pili i ka plasma. Ua hōʻike ʻia ʻo ka K-doped tungsten i hana ʻia me ka sparking plasma sintering (SPS) e hōʻike ana i ka conductivity thermal maikaʻi, a me nā waiwai mechanical ikaika ma nā mahana mai RT a 50 °C.
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