Cov hluav taws xob puas tsuaj ntawm cov kab ke txiav txim siab ntawm kev ua kom zoo thiab kev lag luam ntawm lub reactor, tshwj xeeb tshaj yog cov neeg caij ntuj lub tsheb kub-txias reactor. Lub tshuab ntawm neutron arteration yog elastic tawg thiab cov atoms ntawm cov khoom siv los ntawm lawv yog pauv mus rau cov atoms ntawm cov khoom siv. Graphite hmoov tseem yog cov lus cog tseg rau cov ntaub ntawv ntshav-taw qhia rau cov fusion reactors. Cov neeg siv hauv qab no los ntawm FU Ru Ru Ru Ruite qhia cov ntawv thov ntawm Graphite hmoov hauv Nuclear Kuaj:
Nrog rau kev nce ntawm neutron flucence, cov hmoov graphite hmoov ua ntej shrinks, thiab tom qab mus txog qhov tsawg me me, rov mus rau thawj qhov loj, thiab tom qab ntawd nthuav dav sai. Txhawm rau kom siv tau cov neutrons tso tawm los ntawm cov fission, lawv yuav tsum qeeb. Lub thermal cov khoom ntawm graphite hmoov yog tau los ntawm irradiation ntsuas, thiab kev ntsuas kev ntsuas dej hauv tsev yuav tsum yog tib yam li kev ua haujlwm tiag tiag ntawm tus reactor. Lwm qhov kev ntsuas los txhim kho cov neutronons ntawm kev siv cov neutrons yog siv cov ntaub ntawv muaj kev cuam tshuam kom pom cov neutrons leaking tawm ntawm cov kev ua haujlwm nuclear kev tawm tsam cheeb tsam-core rov qab. Cov txheej txheem ntawm Neuron xav tau tseem yog cov tawg eliatring ntawm neutrons thiab atoms ntawm cov ntaub ntawv muaj kev cuam tshuam. Txhawm rau tswj cov kev ploj los ntawm kev siv rau qib uas pub tau tso cai, cov hmoov graphite siv nyob rau hauv cov reactor yuav tsum yog nuclear ntshiab.
Nuclear grinear kab mob yog ib ceg ntawm graphite hmoov cov ntaub ntawv tsim hauv kev xav tau ntawm lub tsev kev xav tau ntawm lub tsev kev ua haujlwm nuclear fissors thaum xyoo 1940. Nws yog siv los ua tus tswj hwm, xav txog thiab cov khoom siv txheem sib xyaw ua ke nyob hauv cov reactors ntau lawm, roj-txias roj-txias cov roj. Qhov tshwm sim ntawm Neutron reacting nrog lub nucleus yog hu ua tus ntoo khaub lig seem, thiab lub zog nruab nrab ntawm 0.025 yog ob qib nruab nrab ntawm 2ev) cov fissional. Elastic modulus, lub zog thiab linear nthuav coefficient ntawm graphite hmoov nce nrog nce ntawm neutron fluence, thiab tom qab ntawd qis qis heev. Thaum ntxov xyoo 1940, tsuas yog graphite hmoov muaj nyob ntawm tus nqi pheej yig siv classing cov hmoov ntau heev raws li cov khoom siv kub.
Tus yuam sij rau ua isotropic graphite hmoov yog siv Cokropic coke, thiab cov roj ntsha hauv qab, thiab cov roj ntsha theem siab theem nrab feem ntau siv tam sim no. Qhov loj ntawm hluav taws xob kev puas tsuaj yog cuam tshuam nrog cov ntaub ntawv raw ntawm graphite hmoov, kev tsim kho kab mob kev haus cawv thiab kev foob tsis taus, irradiation kub thiab lwm yam. Lub boron sib npaug ntawm nuclear graphite hmoov yog yuav tsum tau nyob ib ncig 10 ~ 6.
Lub Sijhawm Post: Lub Tsib Hlis-18-2022