Seramiki SiC Sinted: Uru nke Ngwaahịa Ballistic SiC Ceramic
Ngwaahịa seramiiki silicon carbide nke na-egbochi mgbọna-aghọwanye ihe a ma ama n'ihe gbasara nchekwa onwe onye na nke ndị agha n'ihi arụmọrụ na arụmọrụ ha dị mma. Seramiki ndị a nwere ọdịnaya SiC ≥99% na ike siri ike (HV0.5) ≥2600, na-eme ka ha bụrụ ihe a na-ahọrọ maka ojiji ballistic dịka jaketị na-egbochi mgbọ na ngwa nchebe maka tankị na ụgbọ ala agha.
Isi ihe dị na usoro a bụ mpempe akwụkwọ seramiiki silicon carbide nke na-egbochi mgbọ. Njupụta ya dị ala na ibu dị mfe na-eme ka ọ dabara nke ọma maka ngwa agha nke onye ọ bụla, ọkachasị dịka mkpuchi dị n'ime nke jaketị na-egbochi mgbọ. Ọzọkwa, ọ na-enye uru dị ukwuu n'ihe gbasara ịdịte aka, ike na nkwụsi ike okpomọkụ.
Seramiki silicon carbide (SiC) nwere usoro kristal abụọ, cubic β-SiC na hexagonal α-SiC. Seramiki ndị a nwere njikọ covalent siri ike, njirimara igwe ka mma, iguzogide oxidation, iguzogide iyi na obere coefficient nke esemokwu karịa seramiki ndị ọzọ dị ka alumina na boron carbide. Nnukwu conductivity okpomọkụ ha, obere coefficient nke mgbasawanye okpomọkụ, na ezigbo iguzogide ujo okpomọkụ na corrosion kemịkalụ na-eme ka ojiji ha dịkwuo mfe.
Ụkpụrụ nke seramiiki silicon carbide nke na-egbochi mgbọ dị n'ike ya ịgbasa ma na-amịkọrọ ike mgbọ. Ọ bụ ezie na ihe ndị e ji eme ihe n'ihe gbasara injinịa ọdịnala na-amịkọrọ ike site na mgbanwe plastik, ihe ndị e ji seramiiki mee, gụnyere silicon carbide, na-eme ya site na obere mgbawa.
Enwere ike kewaa usoro nnabata ike nke seramiiki silicon carbide bullet profile n'ime usoro atọ. N'oge mbido mmetụta ahụ, mgbọ ahụ kụrụ elu seramiiki ahụ, na-eme ka mgbọ ahụ ghara ịdị ike ma na-akụri elu seramiiki ahụ, na-emepụta obere ebe siri ike nkewa. N'oge mbuze, mgbọ ahụ na-aga n'ihu na-emebi ebe ahụ, na-emepụta oyi akwa nke ihe mkpofu seramiiki na-aga n'ihu. N'ikpeazụ, n'oge mgbanwe, mgbawa na mgbawa, seramiiki ahụ na-enweta nrụgide nrụgide, na-eduga na mgbawa ya n'ikpeazụ. Ike fọdụrụnụ na-apụ site na mgbanwe nke ihe azụ.
Njirimara ndị a dị mma na usoro mmịpụta ike nke ogbo atọ na-eme ka ngwaahịa ballistic silicon carbide nke seramiiki belata mmetụta nke mgbọ nke ọma ma mee ka ha ghara ịdị njọ. Ọkwa mgbochi mgbọ ruru ọkwa ọkọlọtọ nke 4 nke Amerịka, nke na-enye nchebe kachasị elu ma bụrụ nhọrọ mbụ nke ndị ọkachamara agha n'ụwa.
Na mkpokọta, seramiiki simenti sintered carbide na usoro ngwaahịa seramiiki simenti carbide nwere uru pụrụ iche n'ihe gbasara ihe eji arụ ọrụ, nkwụsi ike okpomọkụ, na arụmọrụ mgbochi mgbọ. Site na ihe onwunwe ha dị elu, a na-eji seramiiki ndị a eme ihe dị ka ihe mkpuchi maka jaketị mgbochi mgbọ na ngwaọrụ nchebe maka tankị na ụgbọ ala agha. Njupụta ha dị ala na ibu dị mfe na-eme ka ha dị mma maka nchekwa ballistic onwe onye. Ka teknụzụ na-aga n'ihu, anyị nwere ike ịtụ anya mmepe na ojiji nke seramiiki ndị a dị egwu na nchekwa onwe onye na agha.
Oge ozi: Ọgọst-24-2023