He aha ka tungsten hexafluoride i hoʻohana ʻia no?
He aha ka tungsten hexafluoride i hoʻohana ʻia no?
Hexafluoride Tungstenhe kinoea kala ʻole, ʻawaʻawa a ʻino me ka mānoanoa ma kahi o 13 g/L, ʻo ia hoʻi he 11 mau manawa ka nui o ka ea a me kekahi o nā kinoea ʻoi loa. I ka ʻoihana semiconductor, hoʻohana nui ʻia ka tungsten hexafluoride i ke kaʻina hana vapor deposition (CVD) e waiho i ka metala tungsten. Hiki ke hoʻohana ʻia ke kiʻi ʻoniʻoni tungsten i waiho ʻia e like me ka laina interconnection o nā lua a me nā lua hoʻopili, a loaʻa iā ia nā hiʻohiʻona o ka haʻahaʻa haʻahaʻa a me ka helu heheʻe kiʻekiʻe. Hoʻohana pū ʻia ʻo Tungsten hexafluoride i ka etching chemical, etching plasma a me nā kaʻina hana ʻē aʻe.
He aha ke kinoea ʻona ʻole loa?
ʻO ke kinoea ʻawaʻawa ʻole loa ka argon (Ar) me ka mānoanoa o 1.7845 g/L. ʻO Argon kahi kinoea inert, kala ʻole a ʻala ʻole, a ʻaʻole maʻalahi ke hana me nā mea ʻē aʻe. Hoʻohana nui ʻia ke kinoea Argon i ka pale kinoea, wili metala, ʻoki metala, laser a me nā māla ʻē aʻe.
Ua ʻoi aku ka ikaika o ka tungsten ma mua o ka titanium?
ʻO Tungsten a me titanium nā mea metala me nā wahi hoʻoheheʻe kiʻekiʻe a me ka ikaika. ʻO ka helu hoʻoheheʻe o tungsten he 3422 ° C a ʻo ka ikaika he 500 MPa, aʻo ka helu heheʻe o ka titanium he 1668 ° C a ʻo ka ikaika he 434 MPa. No laila, ʻoi aku ka ikaika o ka tungsten ma mua o ka titanium.
Pehea ka ʻawaʻawa o ka tungsten hexafluoride?
Hexafluoride Tungstenhe kinoea ʻawaʻawa loa e hiki ke hoʻopōʻino i ke kino o ke kanaka ke hoʻohu ʻia. ʻO ka LD50 o ka tungsten hexafluoride he 5.6 mg / kg, ʻo ia hoʻi, inhalation o 5.6 mg o tungsten hexafluoride i hoʻokahi kilokani o ke kaumaha o ke kino e hopena i ka 50% o ka make. Hiki i ka tungsten hexafluoride ke hoʻonāukiuki i ka ʻōpū hanu, e hōʻike ana i nā hōʻailona e like me ka ʻū, ka paʻa o ka umauma, a me ka dyspnea. Hiki i nā hihia koʻikoʻi ke alakaʻi i ka edema pulmonary, ka hanu ʻana a me ka make.
E rust tungsten?
ʻAʻole e ʻōpala ʻo Tungsten. ʻO Tungsten kahi metala inert ʻaʻole maʻalahi me ka oxygen i ka lewa. No laila, ʻaʻole e pala ka tungsten i ka mahana maʻamau.
Hiki i ka ʻakika ke ʻino i ka tungsten?
Hiki i nā ʻakika ke hoʻopōʻino i ka tungsten, akā ma ka wikiwiki. Hiki i nā ʻakika ikaika e like me ka sulfuric acid concentrated a me ka acid hydrochloric concentrated hiki ke hoʻopau i ka tungsten, akā lōʻihi ka manawa. ʻO nā ʻakika nāwaliwali e like me ka dilute sulfuric acid a me ka dilute hydrochloric acid he hopena palupalu nāwaliwali i ka tungsten.
