Ukulimala kwemisebe ye-graphite powder kunomthelela onqumayo ekusebenzeni kwezobuchwepheshe nakwezomnotho kwe-reactionor, ikakhulukazi umbhede we-Pebble wokushisa wegesi opholile. Indlela yokulinganisa ne-neutron ukusakazeka okuqhubekayo kwama-neutrons nama-athomu ezinto ezisetshenziswayo, futhi amandla athwalwa yiwo adluliselwa kuma-athomu wezinto ezisetshenziswayo. I-graphite powder ibuye ibe ngummeleli othembisayo wezinto ezithathwe nge-plasma eziqondiswayo ze-Nuclear Fusion reactors. Abahleli abalandelayo abavela ku-FU Runite bethula uhlelo lokusebenza lwe-graphite powder ekuhlolweni kwenuzi:
Ngokunyuka kwe-neutron freance, i-graphite powder kuqala icwila, futhi ngemuva kokufinyelela inani elincane, i-shrinkage iyancipha, ibuyela kosayizi wokuqala, bese iyanda ngokushesha. Ukuze usebenzise ngempumelelo ama-neutrons akhishwe ngokufiphala, kufanele ancishiswe phansi. Izakhiwo ezishisayo ze-graphite powder zitholakala ngokuhlolwa kwe-irradiation, kanye nezimo zokuhlola ze-irradiation kufanele zifane nezimo zangempela zokusebenza kwe-reactionor. Esinye isilinganiselo sokuthuthukisa ukusetshenziswa kwama-neutrons ukusebenzisa izinto ezibonakalayo ukukhombisa ama-neutrons aphuma ngaphandle kwe-nuclear feip reaction zone zone zone-roose emuva. Indlela yokubonisa kwe-neutron futhi ingukusakazeka okuqhubekayo kwama-neutrons nama-athomu wezinto ezibonakalayo. Ukuze ulawule ukulahleka okubangelwa ukungcola kwinqanaba elivumelekile, i-graphite powder esetshenzisiwe ku-reactor kufanele ibe msulwa.
I-graphite graphite ye-nuclear iyigatsha lezinto zokwelapha ze-graphite zenzelwe ukuphendula izidingo zokwakha ama-reactors we-nuclear of of nucleary ekuqaleni kwawo-1940. Kusetshenziswa njengomengameli, ukuboniswa kanye nezinto zokwakha ezihlelekile kuma-reactors okukhiqiza, ama-reactors apholile igesi kanye nama-reactors aphezulu wegesi apholile. Amathuba okuvuma kwe-neutron ne-nucleus abizwa ngokuthi yingxenye yesiphambano, kanye ne-neutron ye-thermal (isilinganiso samandla we-0.025ev) e-U-235 amabanga ama-neutron amabili aphakeme kunengxenye yesigaba sokufunga. I-Elastic Modulus, amandla kanye nokunwetshwa komugqa we-graphite powder ukwanda ngokunyuka kwe-neutron freance, finyelela inani elikhulu, bese uncipha ngokushesha. Ekuqaleni kweminyaka yo-1940, kuphela i-graphite powder eyayitholakala ngentengo efinyelelekayo esondele kulokhu kuhlanza, yingakho wonke ama-reactoror ne-reactoror kanye nokukhiqizwa okusebenzayo asebenzisa i-graphite powder njengezinto ezisetshenziswayo.
Isihluthulelo sokwenza i-isotropic graphite powder ukusebenzisa ama-coke ama-isotropy: i-isotropic coke noma i-macro-isotropic coke eyenziwe nge-asotropic coke eyenziwe nge-Anisotropic Coke, kanti ubuchwepheshe beCoke Secondary buvame ukusetshenziswa njengamanje. Usayizi wokulimala kwemisebe uhlobene nezinto ezivuthiwe ze-graphite powder, inqubo yokukhiqiza, ukushelela kwe-neutron okusheshayo kanye ne-fluence fluence, izinga lokushisa i-irradiation kanye nezinye izinto. I-Boron elingana le-powder ye-graphite yenuzi liyadingeka ukuba libe yi-10 ~ 6.
Isikhathi Sokuposa: Meyi-18-2022