Tšenyo ea mahlaseli ea phofo ea graphite e na le phello e tiileng ho ts'ebetso ea botekgeniki le moruo oa sekontiri, haholo-holo bethe ea lejoe la lejoana mocheso o phahameng oa mocheso oa khase o pholileng. Mochini oa ho lekanyetsoa ha neutron ke ho hasana ha rekere ea li-neutron le liathomo tsa thepa e lekanyang, 'me matla a tsamaisoang ke tsona a fetisetsoa ho liathomo tsa thepa e lekanyang. Graphite powder hape ke mokhethoa ea tšepisang bakeng sa lisebelisoa tse shebaneng le plasma bakeng sa lisebelisoa tsa nyutlelie tsa fusion. Bahlophisi ba latelang ba Fu Ruite ba hlahisa ts'ebeliso ea phofo ea graphite litekong tsa nyutlelie:
Ka ho eketseha ha molumo oa li-neutron, phofo ea graphite e qala ho fokotseha, 'me ka mor'a ho fihla boleng bo fokolang, ho fokotseha ho fokotseha, ho khutlela boholo ba pele, ebe ho atoloha ka potlako. Bakeng sa ho sebelisa hantle li-neutron tse lokolotsoeng ke fission, li lokela ho fokotsoa. Lintho tse futhumatsang tsa phofo ea graphite li fumanoa ka tlhahlobo ea mahlaseli, 'me maemo a teko ea mahlaseli a lokela ho tšoana le maemo a sebele a ho sebetsa a mochine. Mohato o mong oa ho ntlafatsa ts'ebeliso ea li-neutron ke ho sebelisa lisebelisoa tse bonahatsang ho bonahatsa li-neutron tse lutlang ho tsoa ho nuclear fission reaction zone-core back. Mochini oa ponts'o ea neutron e boetse ke ho hasanya ha li-neutron le liathomo tsa lisebelisoa tse bonahatsang. E le ho laola tahlehelo e bakoang ke litšila ho ea boemong bo amohelehang, phofo ea graphite e sebelisoang ka har'a mochine e lokela ho ba nyutlelie e hloekileng.
Nuclear graphite powder ke lekala la lisebelisoa tsa phofo tsa graphite tse entsoeng ho arabela litlhoko tsa ho haha li-reactor tsa nyutlelie tsa fission mathoasong a bo-1940. E sebelisoa e le mohlahlobi, ho bonahatsa le lisebelisoa tsa sebopeho ho li-reactors tsa tlhahiso, li-reactors tse pholileng ka khase le li-reactors tse nang le mocheso o phahameng oa mocheso o phahameng. Monyetla oa hore neutron e sebetsane le nucleus e bitsoa cross section, 'me thermal neutron (karolelano ea matla a 0.025eV) fission cross section ea U-235 ke limaraka tse peli ho feta fission neutron (average energy of 2eV) fission cross section. . The elastic modulus, matla le linear katoloso coefficient ea graphite phofo eketseha ka keketseho ea neutron fluence, fihla boleng bo boholo, 'me joale fokotseha ka potlako. Mathoasong a lilemo tsa bo-1940, ke phofo ea graphite feela e neng e fumaneha ka theko e theko e tlaase haufi le bohloeki bona, ke ka lebaka leo mochine o mong le o mong oa motlakase le lihlahisoa tse latelang tsa tlhahiso li neng li sebelisa phofo ea graphite e le thepa e leka-lekaneng, e tlisang mehla ea nyutlelie.
Senotlolo sa ho etsa isotropic graphite phofo ke ho sebelisa likaroloana tsa coke tse nang le isotropy e ntle: coke ea isotropic kapa macro-isotropic coke ea bobeli e entsoeng ka anisotropic coke, 'me theknoloji ea bobeli ea coke e sebelisoa ka kakaretso hona joale. Boholo ba tšenyo ea mahlaseli a kotsi bo amana le lisebelisoa tse tala tsa phofo ea graphite, ts'ebetso ea tlhahiso, pholiso ea neutron e potlakileng le sekhahla sa pholiso, mocheso oa mahlaseli le lintlha tse ling. Boron e lekanang le phofo ea nuclear graphite e hlokahala hore e be haufi le 10 ~ 6.
Nako ea poso: May-18-2022