Introduction to Lanthanum Tungsten (LaW)
ʻO Lanthanum Tungsten, i hoʻopau pinepine ʻia e like meKanawaia i ʻole i hōʻike ʻia e like meW-La₂O₃, ʻaʻole ia he hui kemika ʻokoʻa akā he ahoʻopuehu -pilikia ikaika. He mea hui ia me ka tungsten (W) metala matrix i hoʻokomo ʻia me ka hoʻopuehu like ʻole o nā ʻāpana lanthanum oxide (La₂O₃), maʻamau ka 1-5% o ka nui o ke kaumaha.
Aia kēia mea i kahi papa o nā mea holomua i kapa ʻia ʻooxide-dispersion-strengthen (ODS) alloys. ʻO ka hoʻohui ʻia ʻana o nā nanoparticles lanthanum oxide e hoʻonui nui i nā waiwai o ka tungsten maʻemaʻe, e ʻoi aku ka maikaʻi no ke koi ʻana i nā noi wela -kiʻekiʻe.
Na Waiwai a me na Pono
ʻO ka hoʻomaikaʻi mua ʻana o Lanthanum Tungsten ma luna o ka tungsten maʻemaʻe:
Kiʻekiʻe Kiʻekiʻe Kiʻekiʻe Kiʻekiʻe -Menahana Paʻa a me ka Creep Kū'ē:
Paʻa loa nā ʻāpana La₂O₃ i hoʻopuehu ʻia a hana ma ke ʻano he mea pale kino e hoʻopaʻa ai i nā palena o ka palaoa a me nā dislocations i loko o ka matrix tungsten. ʻAʻole kēia i ka hoʻoheheʻe ʻia ʻana o ka mea ma lalo o ka ukana mīkini i nā wela kiʻekiʻe loa (pinepine ma luna o 2000 degere), kahi mea i kapa ʻia ʻo "creep."
ʻOi aku ke kiʻekiʻe o ka recrystallization wela:
Lilo ka tungsten maʻemaʻe ma hope o ka recrystallization i nā wela kiʻekiʻe. ʻO nā ʻāpana lanthanum oxide ke keʻakeʻa nei i ka ulu ʻana o ka palaoa, e hoʻokiʻekiʻe i ka mahana kahi e hana ai ka recrystallization. ʻAe kēia i ka LaW e mālama i kona ductility a me ka ikaika mechanical no nā manawa lōʻihi ma lalo o ke kaumaha wela.
Hoʻonui ʻia nā waiwai hoʻoheheʻe Thermionic:
He haʻahaʻa ka hana o Lanthanum ma mua o ka tungsten. ʻO ka loaʻa ʻana o nā ʻātoma lanthanum ma ka ʻili o ka electrode e hoʻemi i ka ikehu e pono ai no nā electrons e pakele (ʻo ia hoʻi, hoʻohaʻahaʻa i ka hana hana). ʻO kēia ka hopena i kahi ʻoi aku ka maikaʻi o ka hoʻokuʻu electron, he mea koʻikoʻi no nā kumu electron.
Hoʻomaikaʻi ʻia ka ikaika a me ka lōʻihi o ka mīkini:
ʻO ka mīkini hoʻoikaika hoʻopuehu e hoʻonui nui i ka paʻakikī, ka ikaika tensile, a me ke kū'ē i ka deformation ma ka lumi a me nā mahana kiʻekiʻe i hoʻohālikelike ʻia me ka tungsten maʻemaʻe.
Nā noi
Ma muli o kāna mau waiwai kūikawā, hoʻohana nui ʻia ʻo Lanthanum Tungsten i:
Electron Microscopy a me Spectroscopy:
He mea makemake ia nonā pū puhi electron cathodes (filaments)i nā polokalamu e like me Scanning Electron Microscopes (SEMs) a me Transmission Electron Microscopes (TEMs). Hāʻawi kona kiʻekiʻe kiʻekiʻe o ka hoʻokuʻu ʻana a me ka paʻa i nā kukui electron ʻoi aku ka maikaʻi a ʻoi aku ka lōʻihi o ke ola lawelawe ma mua o nā filament tungsten maʻemaʻe.
Welding a me Plasma Arc ʻoki:
Hoʻohana ʻia ke kānāwai nonā uila -ʻaʻole hiki ke hoʻohanama TIG (Tungsten Inert Gas) wiliwili a me nā lama kukui plasma. ʻO kona kūpaʻa ʻana i nā wela kiʻekiʻe a me ka deformation e hiki ai ke hoʻokumu i ka arc paʻa, ʻoi aku ka maikaʻi o ka hana i nā au kiʻekiʻe, a me ka lōʻihi o ke ola ma mua o ka hiki ʻana o ka hōʻino ʻana o ka tip electrode.
Nā ʻāpana Uhi Wela -Kiʻekiʻe:
Hoʻohana ʻia ia no ke kūkulu ʻana i nā mea hoʻomehana, nā pale radiation, a me nā hale kākoʻo i loko o nā umu -mahana kiʻekiʻe kahi mea nui ka pale ʻana i ka wela a me ka pololei o ke kūkulu ʻana.
Aerospace a me Nuclear Fusion:
Ke noiʻi ʻia nei no ka hoʻohana ʻana i nā ʻāpana koʻikoʻi no nā ʻenekini aerospace a ma ke ʻano he plasma-mea e kū ana i mua (e laʻa, no nā mea hoʻohuli) i nā reactors fusion nuklea, kahi e kū pono ai nā mea waiwai i ka wela a me ke kahe o nā ʻāpana.
Ma ka hōʻuluʻulu manaʻo, ʻo Lanthanum Tungsten ka hana kiʻekiʻe -hoʻoikaika, hoʻopuehu-ikaika i hoʻohui ʻia i ke kiʻekiʻe heheʻe kiʻekiʻe a me ka nui o ka tungsten me ka hoʻomaikaʻi nui ʻana i ka ikaika -mahanahana kiʻekiʻe, kūpaʻa, a me nā waiwai hoʻokuʻu uila, e lilo ia i mea koʻikoʻi no ka ʻenehana kiʻekiʻe i loko o ka ʻenekini a me ka uila.
E pili ana iā Zhuzhou Kingdon Industrial & Commercial Co., Ltd
Mai ko mākou hoʻokumu ʻana ma 2004, hoʻolaʻa mau mākou i ka hana ʻana i nā huahana tungsten kiʻekiʻe a me nā molybdenum. I kēia manawa ua hoʻolaha ʻia kā mākou ʻoihana kūʻai o waho ma USA, UK, Kelemānia, India, Kelemānia, Palakila, Polani, CZ, Slovenia, Singapore a me nā mea ʻē aʻe.
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Nā huahana pale: tungsten lanthanated maʻemaʻe, Kina nā mea hana tungsten lanthanated maʻemaʻe, mea hoʻolako, hale hana
