Lintho tsa ho monya tsa neutron tsa Zirconium foil

Maemo a Phapano bakeng sa Matla a Neutron a fapaneng

Karolo ea ho monya neutron ea thepa ke tekanyo ea monyetla oa ho monya li-neutron tsa matla a fapaneng. Bakeng sa foil ea zirconium, litekanyetso tsena tsa likarolo li fapana ho ea ka matla a li-neutron tse kenang, tse ka arolelanoang ka mokhoa o pharaletseng ka li-neutron tse futhumetseng, tsa epithermal le tse potlakileng.

Thermal Neutron Absorption

Li-neutron tse futhumatsang, tse nang le matla a ka tlase ho 1 eV, li khahla haholo meralo e mengata ea nyutlelie. Zirconium e bonts'a karolo e ka tlase ea mocheso oa neutron, e ka bang meliko ea 0.18 bakeng sa zirconium ea tlhaho. Boleng bona bo tlaase bo tiisa hore likarolo tsa zirconium, tse kang ho roala mafura tse entsoeng ka li-alloys tsa zirconium, ha li sitise moruo oa neutron haholo ka har'a mokokotlo oa motlakase.

Litšebelisano tsa Epithermal le Fast Neutron

Ha matla a neutron a ntse a eketseha, karolo ea sefapano sa zirconium ea ho monya e ea fokotseha. Bakeng sa li-neutron tsa epithermal (matla a pakeng tsa 1 eV le 1 MeV), litekanyetso tsa likarolo li theoha haholo. Li-neutron tse potlakileng, tse nang le matla a ka holimo ho 1 MeV, li na le menyetla e tlaase ea ho kenngoa ke liathomo tsa zirconium. Boitšoaro bona bo itšetlehileng ka matla bo etsa hore zirconium e be lisebelisoa tse ntle haholo bakeng sa lits'ebetso moo ho batloang pepeneneng ea neutron ho pholletsa le matla a mangata.

Karolo e tlase ea ho monya ho pholletsa le matla a fapaneng a neutron e kenya letsoho ho moruo oa zirconium oa nyutrone lits'ebetsong tsa reactor. Thepa ena e lumella tšebeliso e nepahetseng haholoanyane ea mafura 'me e thusa ho boloka phallo e tsitsitseng ea neutron ho pholletsa le mokokotlo oa reactor, e ntlafatsa ts'ebetso le polokeho ka kakaretso.

Papiso le Boron ho Likopo tsa Nyutlelie

Le hoja zirconium e nkoa e le ea bohlokoa bakeng sa ho monya ha neutron e tlaase, boron e atisa ho sebelisoa lits'ebetsong tsa nyutlelie ka lebaka le fapaneng - karolo ea eona e phahameng ea ho monya neutron. Ho bapisa lisebelisoa tsena tse peli ho fana ka temohisiso mabapi le likarolo tsa tsona tse ikhethileng theknolojing ea nyutlelie.

Ho monya Neutron e Phahameng ea Boron

Boron, haholo-holo isotope boron-10 ea eona, e na le mohano oa nyutrone oa mocheso oa meliko e ka bang 3835 - ka makhetlo a fetang 21,000 ho feta zirconium ea tlhaho. Thepa ena e etsa hore boron e be mohanyi o babatsehang oa nyutrone, o atisang ho sebelisoa lithupeng tsa taolo, tšireletso ea nyutrone, le lisebelisoa tsa nyutlelie.

Likarolo tse Tlatsetsang ho Moralo oa Reactor

Mehaho e fapaneng ea ho monya neutron ea zirconium le boron e li lumella ho etsa mesebetsi e tlatselletsang ho li-reactor tsa nyutlelie:

• Li-alloys tsa zirconium li sebelisoa bakeng sa ho koaheloa ha mafura le likarolo tsa sebopeho moo ho monya ha neutron ho bohlokoa bakeng sa ho boloka ts'ebetso e ntle ea reactor.
• Boron e sebelisoa ho lithupa tsa taolo le lits'ebetso tsa polokeho moo ho monya ha nyutrone e phahameng ho hlokahalang bakeng sa ho laola karabelo ea nyutlelie le ho netefatsa bokhoni bo sireletsehileng ba ho koala.

Tšebelisano ena lipakeng tsa lisebelisoa tse nang le litšobotsi tse fapaneng tsa ho monya neutron e thusa ho laola ts'ebetso e nepahetseng le ho ntlafatsa polokeho ka kakaretso. Ho monya ha nyutrone ho tlase foil ea zirconium le li-alloys tsa zirconium likopanong tsa mafura li lumella ho sebelisoa ha neutron hantle, ha likaroloana tse thehiloeng ho boron li fana ka mokhoa oa ho potlakela ho fetola ts'ebetso ha ho hlokahala.

Kamoo Alloying e Amang Neutron Absorption kateng

Le ha zirconium e hloekileng e na le thepa e ntle ea ho monya neutron, likarolo tsa alloying hangata li eketsoa ho ntlafatsa thepa ea eona ea ho hanyetsa mochini le ho bola. Keketso ena e ka susumetsa litšobotsi tse akaretsang tsa ho monya neutron tsa motsoako o hlahisoang.

Li-Alloys tse tloaelehileng tsa Zirconium ho Lisebelisoa tsa Nyutlelie

Ho entsoe li-alloys tse 'maloa tsa zirconium bakeng sa ho sebelisoa ho li-reactors tsa nyutlelie,' me Zircaloy-2 le Zircaloy-4 e le tse ling tsa tse tloaelehileng haholo. Li-alloys tsena hangata li na le lithane tse nyane, tšepe, chromium le nickel (tabeng ea Zircaloy-2). Sebopeho se ikhethileng se laoloa ka hloko ho boloka ho monya ha neutron ha ho ntse ho ntlafatsa thepa e 'ngoe.

Tšusumetso ea Alloying Elements

Keketso ea likarolo tsa alloying e ka ba le litlamorao tse fapaneng mabapi le ho monya ha neutron:

• Tin: Ka kakaretso e na le tšusumetso e fokolang ho monyeng ha nyutrone ka lebaka la karolo ea eona e tlase haholo.
• Iron le Chromium: Lintho tsena li ka eketsa ho monya ha neutron hanyane, empa likhakanyo tsa tsona li bolokoa li le tlase ho fokotsa phello ena.
• Nickel: E na le karolo e phahameng ea ho monya neutron 'me hangata e tlosoa kapa e fokotsoa ka mekhoa e mecha ea alloy ho ntlafatsa moruo oa nyutrone.

Ho leka-lekanya melemo ea motsoako le tlhoko ea ho boloka ho monya ha nyutrone ke ntlha ea bohlokoa ea nts'etsopele ea alloy ea zirconium bakeng sa lits'ebetso tsa nyutlelie. Li-alloys tse tsoetseng pele li ikemiselitse ho ntlafatsa tekanyo ena, ho fana ka thepa e ntlafalitsoeng ea mochini le ho bola ha ho ntse ho fokotsa tšusumetso moruong oa nyutrone.

Ho kenngoa ha Neutron ho Advanced Zirconium Alloys

Patlisiso e ntseng e tsoela pele ho foil ea zirconium nts'etsopele e shebana le ho theha lisebelisoa tse nang le litšobotsi tse ntle le ho feta tsa ho monya neutron ha e ntse e ntlafatsa thepa e meng. Mekhoa e meng e kenyelletsa:

• Ho fokotsa bongata ba litšila tse ngata tsa neutron tse monyang
• Ho hlahloba likarolo tse ncha tsa motsoako ka likaroloana tse tlase tsa neutron
• Ho ntlafatsa sebopeho sa microstructure ho susumetsa litšebelisano tsa neutron

Tsoelopele ena moralong oa alloy e kenya letsoho ntlafatsong e tsoelang pele ea ts'ebetso le polokeho ea reactor ea nyutlelie, ho sebelisa thepa e ikhethang ea thepa e thehiloeng ho zirconium.

fihlela qeto e

Thepa ea ho monya neutron ea foil ea zirconium le alloys ea zirconium e bapala karolo ea bohlokoa ho theknoloji ea nyutlelie, e nolofalletsang meralo e sebetsang hantle le e bolokehileng ea reactor. Ka ho utloisisa le ho ntlafatsa thepa ena, lienjineri le boramahlale ba tsoela pele ho sutumelletsa meeli ea tlhahiso ea matla a nyutlelie le lits'ebetso tse amanang le tsona.

Bakeng sa ba batlang lihlahisoa tsa boleng bo holimo tsa zirconium bakeng sa nyutlelie kapa lisebelisoa tse ling tse tsoetseng pele, Baoji Freelong New Material Technology Development Co., Ltd. e eme e le mofani ea ka sehloohong. E fumaneha Toropong ea Baoji, Phula ea Titanium ea Chaena, re ipapisitse le tlhahiso le kantle ho naha ea zirconium, titanium, nickel, niobium, tantalum, le li-alloys tse fapaneng. Boitlamo ba rona ba boleng le tšebeletso bo entse hore re tšepeloe ke bareki ho pholletsa le Australia, Korea, Jeremane, US, UK, Malaysia, Middle East, Taiwan, le ho feta.

Ho ithuta haholoanyane ka tsa rona foil ea zirconium lihlahisoa le kamoo li ka finyellang litlhoko tsa hao tse khethehileng, ka kōpo u se ke ua tsilatsila ho ikopanya le rona ho jenny@bjfreelong.com. Sehlopha sa rona sa litsebi se ikemiselitse ho u thusa ho fumana tharollo e phethahetseng ea kopo ea hau, ho netefatsa hore u fumana lisebelisoa tse lumellanang kapa tse fetang litlhoko tsa hau tsa boleng.

References

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2. Zinkle, SJ, & Was, GS (2013). Mathata a lisebelisoa ho eneji ea nyutlelie. Acta Materialia, 61 (3), 735-758.

3. Kuznetsov, V., & Sekimoto, H. (2017). Lilaebrari tsa Neutron Cross-Section bakeng sa Likopo tsa Nyutlelie. Springer.

4. Cox, B. (2005). Mehopolo e meng mabapi le mekhoa ea ho bola ha in-reactor ea li-alloys tsa zirconium. Journal of Nuclear Materials, 336 (2-3), 331-368.

5. Yamamoto, Y., & Takagi, I. (2019). Nts'etsopele ea Li-Alloys tsa Zirconium bakeng sa Likopo tse Phahameng tsa Mafura a Burnup. Boenjiniere ba Nyutlelie le Theknoloji, 51(4), 1006-1016.

6. Murty, KL, & Charit, I. (2013). Nts'etsopele ea sebopeho le deformation ea anisotropic ea zircaloys. Tsoelo-pele ho Matla a Nyutlelie, 48(4), 325-359.