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Akụrụngwa
Beryllium oxide ceramics nwere oke okpomọkụ na njirimara ọnwụ dị ala
A na-eji seramiki BeO ugbu a na ngwungwu ngwa ngwa ike dị elu, ngwugwu transistor eletrọnịkị dị elu, yana ngwa njupụta multi-chip dị elu. Iji ihe BeO mee ihe nwere ike ịkwasa ọkụ na-emepụta na usoro ahụ n'oge iji hụ na nkwụsi ike na ntụkwasị obi nke usoro ahụ.
A na-eji BeO maka nkwakọ transistor eletrọnịkị dị elu
Mara: Transistor bụ ngwaọrụ semiconductor siri ike, nwere nchọta, ndozi, nkwalite, mgbanwe, ụkpụrụ voltaji, mgbanwe mgbaama na ọrụ ndị ọzọ. Dị ka ụdị mgbanwe mgbanwe dị ugbu a, transistor nwere ike ijikwa mmepụta nke ugbu a dabere na voltaji ntinye. N'adịghị ka igwe ọkụ nkịtị, transistors na-eji telekomunikashions chịkwaa mmeghe na mmechi nke ha, na ngbanwe ọsọ nwere ike ịdị ngwa ngwa, na ngbanwe ọsọ na laabu nwere ike iru karịa 100GHz.
Ngwa N'ime ihe nrụpụta nuklia
Ngwongwo seramiiki nke nuklia bụ otu n'ime ihe ndị dị mkpa a na-eji na reactors, na reactors na fusion reactors, seramiiki ihe na-enweta ike dị elu particles na gamma radieshon, ya mere, na mgbakwunye na elu okpomọkụ nguzogide, corrosion iguzogide, seramiiki ihe na-achọkwa ka ọ dị mma. nkwụsi ike ihe owuwu. Ndị na-egosipụta neutron na ndị nhazi (ndị nhazi) nke mmanụ nuklia na-abụkarị BeO, B4C ma ọ bụ ihe graphite.
Beryllium oxide ceramics nwere mma elu okpomọkụ irradiation kwụsie ike karịa metal, elu njupụta karịa beryllium metal, mma ike na elu okpomọkụ, elu thermal conductivity, na dị ọnụ ala karịa beryllium metal. Ọ dịkwa mma maka ojiji dị ka onye na-atụgharị uche, onye nhazi na mgbasa ozi na-agbasa ọkụ na mkpokọta ọkụ ọkụ. Enwere ike iji Beryllium oxide mee ihe dị ka mkpanaka njikwa na ihe nrụpụta nuklia, yana enwere ike ijikọ ya na ceramik U2O ka ọ bụrụ mmanụ nuklia.
Ntụgharị ọkwa dị elu - Crucible metal pụrụ iche
Ngwaahịa seramiiki BeO bụ ihe na-emegharị emegharị. Enwere ike iji eriri seramiiki BeO gbazee ọla ndị na-adịghị ahụkebe ma dị oke ọnụ ahịa, ọkachasị ebe achọrọ ọla dị ọcha ma ọ bụ alloys dị elu. The arụ ọrụ okpomọkụ nke crucible nwere ike iru 2000 ℃.
N'ihi okpomọkụ ya dị elu (ihe dị ka 2550 Celsius C), nkwụsi ike nke kemịkal dị elu (nkwụsị alkali), nkwụsi ike na ịdị ọcha, BeO ceramics nwere ike iji gbazee glazes na plutonium. Na mgbakwunye, ejirila crucibles ndị a mee ihe nke ọma iji mepụta ihe atụ ọkọlọtọ nke ọlaọcha, ọla edo na platinum. Ogo dị elu nke "nghọta" nke BeO na radieshon electromagnetic na-enye ohere ka agbaze ihe nlere igwe site na ikpo ọkụ induction.
Ngwa ndị ọzọ
a. Beryllium oxide ceramics nwere ezigbo ọkụ ọkụ, nke bụ iwu abụọ dị elu karịa quartz a na-ejikarị eme ihe, ya mere laser nwere arụmọrụ dị elu na nnukwu mmepụta ike.
b. Enwere ike ịgbakwunye ceramik BeO dị ka ihe mejupụtara iko nke ihe dị iche iche. Otu iko nwere beryllium oxide na-ebunye X-ray. A na-eji tubes X-ray mee nke iko a na nyocha nhazi yana na ọgwụ iji gwọọ ọrịa anụ ahụ.
Beryllium oxide ceramics na seramiki eletrọnịkị ndị ọzọ dị iche, ka ọ dị ugbu a, ịdị elu ya dị elu na njirimara ọnwụ dị ala siri ike iji ihe ndị ọzọ dochie ya.
| ITEM# | Oke arụmọrụ | Dị ndụ |
| index | ||
| 1 | Ebe mgbaze | 2350± 30 ℃ |
| 2 | Dielectric mgbe niile | 6.9±0.4 (1MHz, (10±0.5)GHz) |
| 3 | Dielectric ọnwụ Angle tangent data | ≤4×10-4(1MHz) |
| ≤8×10-4((10±0.5)GHz) | ||
| 4 | Olu resistivity | ≥1014Oh·cm(25 ℃) |
| ≥1011Oh·cm(300 ℃) | ||
| 5 | Ike na-emebi emebi | ≥20 kV/mm |
| 6 | Na-agbaji ike | ≥190 MPa |
| 7 | Njupụta olu | ≥2.85 g/cm3 |
| 8 | Nkezi ọnụọgụ nke mgbasawanye ahịrị | (7.0~8.5) × 10-61/K (25 ℃~500 ℃) |
| 9 | Thermal conductivity | ≥240 W/（m·K（25℃) |
| ≥190 W/（m·K（100℃） | ||
| 10 | Mgbochi ujo okpomọkụ | Enweghị mgbawa, isi |
| 11 | Nkwụsi ike nke kemịkal | ≤0.3 mg/cm2(1:9 HCl) |
| ≤0.2 mg/cm2(10% NaOH) | ||
| 12 | Mkpuchi gas | ≤10×10-11 Pa·m3/s |
| 13 | Nkezi nha kristal | (12-30) μm |