Nūhou
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Molybdenum ʻoiaʻiʻo a me nā helu
Molybdenum: He mea hana maoli ia i ʻike ʻia ma 1778 e Carl Wilhelm Scheele, ke kanaka ʻepekema Kuekene nāna i ʻike i ka oxygen i ka lewa. Loaʻa i kekahi o nā wahi heheʻe kiʻekiʻe loa o nā mea a pau akā ʻo kona mānoanoa he 25% wale nō ka nui o ka hao. Aia i loko o nā ores like ʻole, akā molybdenite wale nō ...Heluhelu hou aku -
Kōkua ʻo Tungsten isotope i ke aʻo ʻana pehea e pale ai i nā reactors fusion e hiki mai ana
ʻO ka loko o ka nuklea fusion energy reactors e hiki mai ana i waena o nā kaiapuni ʻoi loa i hana ʻia ma ka Honua. He aha ka mea ikaika e pale aku ai i loko o kahi reactor fusion mai nā kahe wela i hana ʻia e ka plasma e like me nā kaʻa kaʻa e komo hou ana i ka lewa honua? ʻO nā mea noiʻi ORNL u...Heluhelu hou aku -
ʻIke ka poʻe noiʻi i ka hoʻokumu ʻana o nā māwae ma 3-D-paʻi tungsten i ka manawa maoli
Ke hoʻokiʻekiʻe nei i nā wahi hoʻoheheʻe a me ka paila kiʻekiʻe o nā mea a pau i ʻike ʻia, ua lilo ʻo tungsten i mea koho kaulana no nā noi e pili ana i nā wela wela, e like me nā filaments kukui, arc welding, radiation shielding a, ʻoi aku nei, he mea e kū pono ana i ka plasma i nā mea hoʻohuihui e like me ka. ..Heluhelu hou aku -
Weldability o Tungsten a me kona mau Alloys
Hiki ke hoʻohui maikaʻi ʻia ʻo Tungsten a me kāna mau mea hoʻohui e ke kinoea tungsten-arc welding, gas tungsten-arc braze welding, electron beam welding a me ka hoʻoheheʻe ʻana i ka mahu. ʻO ka weldability o ka tungsten a me ka nui o kāna mau mea hoʻohui i hoʻohui ʻia e ka hoʻolei ʻana i ka arc, ka pauka metallurgy, a i ʻole nā mea hoʻoheheʻe kemika ...Heluhelu hou aku -
Pehea e hana ai i ka uea Tungsten?
ʻO ka hana ʻana i ka uea tungsten he hana paʻakikī a paʻakikī. Pono e hoʻopaʻa paʻa ʻia ke kaʻina hana i mea e hōʻoia ai i ka kemika kūpono a me nā waiwai kino kūpono o ka uea i hoʻopau ʻia. ʻO ka ʻoki ʻana i nā kihi ma mua o ke kaʻina hana e hōʻemi i nā kumukūʻai uea hiki ke hopena i ka hana maikaʻi ʻole o ka fin...Heluhelu hou aku -
Ua piʻi ke kumu kūʻai o Kina Tungsten i ka waena o Iulai
ʻO ke kumukūʻai tungsten Kina i ka piʻi ʻana i ka pule i pau i ka Pōʻalima Iulai 17, 2020 ma hope o ka hoʻonui ʻana i ka hilinaʻi mākeke a me ka manaʻolana maikaʻi no ka lako a me nā ʻaoʻao. Eia naʻe, me ka noʻonoʻo ʻana i ka instability o ka hoʻokele waiwai a me nā koi nāwaliwali, paʻakikī ke hoʻonui ʻia nā kuʻikahi i ka pōkole ...Heluhelu hou aku -
Mechanical waiwai o tungsten uea ma hope o ka paikikala deformation lapaʻau
1. Hoʻolauna ʻia nā uea Tungsten, me ka mānoanoa mai nā ʻumi a hiki i ka ʻumi micro-mika, ua hana ʻia i loko o nā spiral a hoʻohana ʻia no nā kumu kukui a hoʻokuʻu. Hoʻokumu ʻia ka hana uea i ka ʻenehana pauka, ʻo ia hoʻi, ka pauka tungsten i loaʻa ma o ke kaʻina hana kemika i ...Heluhelu hou aku -
ʻAʻole paha ʻo Tungsten ka pana maikaʻi loa no ka hana ʻana i nā pōkā 'ōmaʻomaʻo'
Me ka hoʻoikaika ʻana e pāpā i nā pōkā i hoʻokumu ʻia ma ke ʻano he olakino olakino a me ka pōʻino o ke kaiapuni, ke hōʻike nei nā ʻepekema i nā hōʻike hou e hiki ʻole i kahi mea ʻē aʻe mua no nā pōkā - tungsten - ʻaʻole ia he pani maikaʻi. ...Heluhelu hou aku -
Nānā ke aʻo ʻana i ka tungsten i nā kaiapuni koʻikoʻi e hoʻomaikaʻi i nā mea fusion
ʻO ka fusion reactor he ʻōmole magnetic i loaʻa nā kaʻina hana like i ka lā. Hoʻohui ka Deuterium a me ka tritium i ka mahu o nā ion helium, neutrons a me ka wela. E like me ka wela o kēia kinoea ionized—kapa ʻia he plasma—e hoʻoneʻe ʻia ka wela i ka wai e hana i ka mahu e hoʻohuli i nā turbine...Heluhelu hou aku -
Mai ka cobalt a hiki i ka tungsten: pehea e hoʻāla ai nā kaʻa uila a me nā kelepona i kahi ʻano hou o ke gula
He aha kāu mea i loko? ʻAʻole noʻonoʻo ka hapa nui o mākou i nā mea e hiki ai ke ola hou. Eia naʻe, pili nā ʻenehana e like me nā kelepona akamai, nā kaʻa uila, nā kīwī nui a me ka hoʻoulu ʻana i ka ikehu ʻōmaʻomaʻo i nā ʻano mea kemika a ka hapa nui o ka poʻe i lohe ʻole. A hiki i ka lat...Heluhelu hou aku -
ʻO Tungsten e like me ka pale radiation interstellar?
ʻO kahi paila o 5900 degere Celsius a me ka paʻakikī e like me ke daimana i hui pū ʻia me ke kalapona: ʻo ka tungsten ka metala kaumaha loa, akā he mau hana koʻikoʻi kona - ʻoi loa i nā microorganism aloha wela. ʻO kahi hui i alakaʻi ʻia e Tetyana Milojevic mai ka Faculty of Chemistry ma ke Kulanui o Vienna hōʻike no ...Heluhelu hou aku -
Hana nā kānaka ʻepekema i ka tantalum oxide i kūpono no nā mea hana kiʻekiʻe
Ua hoʻokumu nā kānaka ʻepekema ma Rice University i kahi ʻenehana hoʻomanaʻo hoʻomanaʻo paʻa e hiki ai ke mālama i ka nui kiʻekiʻe me ka liʻiliʻi o nā hewa kamepiula. Hoʻokumu ʻia nā hoʻomanaʻo ma ka tantalum oxide, kahi insulator maʻamau i ka uila. Ke hoʻohana nei i ka uila i kahi sandwich 250-nanometer-mānoanoa o graphene...Heluhelu hou aku