Lanthanum Tungsten (LaW) ho nnianim asɛm .
Lanthanum Tungsten, a wɔtaa twitwa so sɛMmaraanaasɛ wɔde gyina hɔ ma sɛW-La2O3 na ɛwɔ hɔ, nyɛ nnuru a ɛda nsow na mmom ɛyɛ adispersion-a wɔahyɛ no den a wɔde afrafra. Ɛyɛ ade a wɔabom ayɛ a ɛyɛ tungsten (W) dade matrix a wɔde lanthanum oxide (La2O3) asinasin a ɛyɛ fɛ na ɛyɛ pɛ apete mu, a mpɛn pii no ɛyɛ 1-5% wɔ emu duru nyinaa mu.
Saa nneɛma yi ka nneɛma a ɛkɔ anim kuw bi a wonim no sɛoxide-apete-a wɔahyɛ no den (ODS) aduru. Lanthanum oxide nanoparticles a wɔde ka ho no ma tungsten a ɛho tew no su nya nkɔso kɛse, na ɛma ɛkorɔn ma nneɛma a ɛhwehwɛ sɛ wɔde di dwuma wɔ ɔhyew a ɛkorɔn mu.
Agyapade ne Mfaso a Ɛwɔ So
Nkɔso titiriw a Lanthanum Tungsten de ma sen tungsten a ɛho tew ne:
Superior High-Ɔhyew a Ɛgyina pintinn ne Creep Resistance:
La2O3 asinasin a apete no gyina pintinn yiye na ɛyɛ adwuma sɛ honam fam akwanside ahorow a ɛde pin aburow hye ne dislocations wɔ tungsten matrix no mu. Eyi mma ade no ntumi nsɛe wɔ mfiri adesoa ase wɔ ɔhyew a ɛkorɔn yiye (a ɛtaa boro digrii 2000 ), adeyɛ a wɔfrɛ no "creep."
Recrystallization Ɔhyew a Ɛkorɔn:
Tungsten a ɛho tew no bɛyɛ nea ɛyɛ mmerɛw bere a wɔasan ayɛ no kristal wɔ ɔhyew a ɛkɔ soro mu akyi. Lanthanum oxide asinasin no siw aburow no nyin, na ɛma ɔhyew a ɛma ahwehwɛ a ɛsan yɛ no kɔ soro no kɔ soro. Eyi ma LaW tumi kura ne ductility ne mfiri ahoɔden mu bere tenten wɔ ɔhyew nhyɛso ase.
Thermionic Emission Su ahorow a wɔama anya nkɔso:
Lanthanum wɔ adwumayɛ dwumadi a ɛba fam sen tungsten. Lanthanum atɔm a ɛwɔ electrode no ani no ma ahoɔden a ɛho hia na electron ahorow aguan no so tew (kyerɛ sɛ, ɛtew adwuma dwumadi no so). Eyi ma ɛlɛtrɔnik ahoɔden a ɛkɔ soro kɛse ba, na ɛno ho hia kɛse ma ɛlɛtrɔnik fibea ahorow.
Mfiri Ahoɔden ne Nteaseɛ a Ɛkɔ Anim:
Adwinnade a ɛhyɛ apete mu den no ma ɛyɛ den, ahoɔden a ɛtwetwe, ne sɛnea ɛko tia deformation wɔ dan ne ɔhyew a ɛkorɔn mu no kɔ soro kɛse bere a wɔde toto tungsten a ɛho tew ho no.
Nnwuma a Wɔde Di Dwuma
Esiane sɛ ɛyɛ soronko nti, wɔde Lanthanum Tungsten di dwuma titiriw wɔ:
Ɛlektrɔnik Microscopy ne Spectroscopy:
Ɛyɛ ade a wɔpɛ maɛlɛtrɔnik atuo cathodes (filaments) .wɔ mfiri te sɛ Scanning Electron Microscopes (SEMs) ne Transmission Electron Microscopes (TEMs) mu. Ne mframa a ɛbɔ kɛse ne nea ɛyɛ den no ma ɛlɛtrɔnik hann a ɛhyerɛn na ɛne ne ho hyia na ɛtra hɔ kyɛ sen tungsten nhama a ɛho tew.
Welding ne Plasma Arc Twitwa:
Wɔde Mmara di dwuma maelectrode ahorow a ɛnyɛ-a wɔde di dwumawɔ TIG (Tungsten Inert Gas) welding ne plasma kyɛnere mu. Ne ahoɔden a ɛko tia ɔhyew a ɛkɔ soro ne deformation ma ɛma arc formation a ɛyɛ pintinn, ɛyɛ adwuma yiye wɔ currents a ɛkorɔn mu, na ɛtra hɔ kyɛ ansa na electrode tip degradation aba.
High-Ɔhyew Fononoo Nneɛma:
Wɔde yɛ ɔhyew nneɛma, mframa a ɛbɔ ho ban, ne nneɛma a ɛboa wɔ fononoo a ɛwɔ vacuum ne ɔhyew a ɛkorɔn-mu a ɔhyew a ɛko tia kɛse ne nhyehyɛe no mudi mu kura na ɛho hia sen biara.
Ahunmu ne Nuklea Nkabom:
Wɔhwehwɛ mu de di dwuma wɔ nneɛma a ɛho hia mu ma ahunmu engine ne sɛ nneɛma a ɛhwɛ plasma- (sɛ nhwɛso no, ma divertors) wɔ nuklea fusion reactors mu, baabi a ɛsɛ sɛ nneɛma gyina ɔhyew a ano yɛ den ne nneɛma nketenkete a ɛsen ano.
Sɛ yɛbɛbɔ no mua a, Lanthanum Tungsten yɛ aduru a ɛyɛ adwuma yiye, ɛpete-a ɛyɛ den a ɛka tungsten a ɛyɛ hyew a ɛkorɔn ne ne duru a ɛwɔ mu no bom ne ɔhyew ahoɔden a ɛkorɔn, ahoɔden a ɛkɔ soro, ne ɛlɛtrɔnik a ɛba no su a ɛkɔ anim kɛse, na ɛma ɛyɛ ade a ɛho hia ma mfiridwuma a ɛkɔ anim wɔ vacuum ɛlɛtrɔnik, welding, ne nea ɛyɛ den mu nneɛma a atwa yɛn ho ahyia.
Ɛfa Zhuzhou Kingdon Nnwuma ne Aguadi Co.,Ltd
Efi bere a yɛde sii hɔ wɔ afe 2004 mu no, yɛde yɛn ho ama bere nyinaa sɛ yɛbɛyɛ tungsten ne molybdenum nneɛma a ɛkorɔn. Mprempren yɛn amannɔne aguadi ntam nkitahodi trɛwee wɔ USA,UK,Germany,India, Germany, Brazil, ,Poland,CZ,Slovenia,Singapore ne nea ɛkeka ho.
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