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Muaj nuj nqi
CAS Nr.: | 1304-56-9 |
Linear Formula: | BeO |
Khoom siv: | Beryllium Oxide |
Purity: | 97% , 99%. |
Qhov tsos: | Dawb Khoom |
Cov duab: | Qws, Tube, Phaj, Sheet, Disc, thiab Customized Parts |
Loj: | Customized |
Cov txheej txheem ua: | Txias Isostatic Xovxwm, Xovxwm Qhuav, Daim Kab Xev Casting, Precision Machining Processing, thiab lwm yam. |
Beryllia Ceramics Description
Beryllium oxide (BeO), uas feem ntau hu ua beryllia, tau txais txiaj ntsig zoo nrog kev sib xyaw ua ke ntawm thermal, hluav taws xob, kho qhov muag, thiab cov khoom siv kho qhov muag uas tuaj yeem siv rau ntau hom kev siv.
BeO muab tag nrho cov yam ntxwv ntawm lub cev thiab dielectric uas xav tau los ntawm txhuas oxide lossis txhuas nitride thiab, ntxiv rau, muaj cov thermal conductivity kaum npaug siab dua alumina, thiab tsib caug feem pua siab dua aluminium nitride, ib qho dielectric tas li uas qis dua ob qho tib si alumina thiab txhuas nitride. , thiab qhov hnyav ntawm qhov muab ntim uas yog tag nrho ib lub hlis twg tsawg dua alumina, thiab ze li kaum feem pua tsawg dua aluminium nitride. Raws li cov khoom siv thermally conductive thiab hluav taws xob insulating, nws qhov kev ua tau zoo tshaj plaws ntawm pob zeb diamond nkaus xwb.
Txawm hais tias high-purity beryllium oxide ceramics muaj kev nyab xeeb heev, nws tsis tuaj yeem tsis quav ntsej tias beryllium oxide plua plav yog tshuaj lom rau tib neeg lub cev. Qhov no zoo li cov yas uas tsis tsim cov co toxins thaum lawv siv, tab sis cov ntaub ntawv ua los ntawm cov yas feem ntau yog tshuaj lom rau tib yam. Beryllium oxide ceramics ua tiav rau hauv cov ntaub ntawv yuav tsis ua mob tshwj xeeb rau tib neeg noj qab haus huv.
Cov yam ntxwv ntawm Beryllia Ceramics
● Sib nrug los ntawm reactivity nrog dej vapor ntawm qhov kub thiab txias (1000 degree), BeO yog ib qho ntawm cov tshuaj lom neeg ruaj khov oxides, tiv thaiv ob qho tib si carbon txo thiab molten hlau nres ntawm qhov kub thiab txias.
● Lub thermal conductivity ntawm BeO yog siab heev nyob rau hauv kev sib piv nrog rau lwm yam ceramics, tshwj xeeb tshaj yog qis dua 300 degree. Rau kev sib piv, thermal conductivity ntawm Beryllium Oxide ntawm Chav Kub yog 285 W / mK, rau tooj liab nws yog 400 W / mK, rau txhuas nitride nws yog 180 W / mK, thiab pob zeb diamond nws yog 2000 W / mK.
● BeO yog cais raws li ib qho hluav taws xob insulator nrog bulk Resistivity ntawm qhov kev txiav txim ntawm 1016Ωcm.
● Lub zog txhua yam yog ib txwm qis dua li ntawm alumina. Nws pob txha toughness feem ntau yog ib nrab ntawm alumina; tab sis nrog kev tsim qauv zoo thiab kev tswj hwm kev tsim cov khoom siv tau zoo tuaj yeem ua tiav rau kev lag luam kev siv ntawm BeO.
● BeO muaj cov thermal shock kuj zoo heev vim nws cov thermal conductivity siab.
● Beryllium oxide muaj qhov ntom ntom 25 feem pua qis dua Alumina. Muab piv cov theoretical ceev qhov tseem ceeb, BeO yog 3.01g/cc thaum Al2O3 yog 4.00 g/cc thiab AlN yog 3.26 g/cc.
● Cov coefficient ntawm thermal Expansion rau BeO yog piv rau ntau lwm yam oxide ceramics thiab ntau cov hlau, ib yam nkaus, ntawm kwv yees li 7.5 in./in./ degree rau qhov ntau ntawm 25 degree - 1000 degree.
Mechanical Properties ntawm Beryllia Ceramics
Cov khoom | Chav tsev | 97% OB | 99% BeO | 99% Al2O3 |
Xim | —— | Dawb | Dawb | Daj |
Qhov ntom | g/cm³ | Ntau dua lossis sib npaug rau 2.85 | Ntau dua lossis sib npaug rau 2.85 | 3.85 |
Flexural zog | MPa | Ntau dua lossis sib npaug li 170 | Ntau dua lossis sib npaug rau 190 | 310 |
Huab cua nruj | Pa.m³/s | Tsawg dua lossis sib npaug li 10 × 10-11 | Tsawg dua lossis sib npaug li 10 × 10-11 | —— |
Nruab Nrab Loj Loj | ua um | 12~30 | 12~30 | —— |
Thermal Properties ntawm Beryllia Ceramics
Cov khoom | Chav tsev | 97% OB | 99% BeO | 99% Al2O3 |
Kev siv kub siab tshaj plaws | degree (Tsis muaj load) | 1600 | 1600 | 1650 |
Thermal conductivity @ 25 degree | W/(m・K) | Ntau dua lossis sib npaug li 200 | Ntau dua lossis sib npaug li 240 | 29 |
Thermal conductivity @ 100 degree | W/(m・K) | Ntau tshaj los yog sib npaug rau 160 | Ntau dua lossis sib npaug rau 190 | —— |
Thermal Expansion ntawm 25-500 degree | 1 x 10-6/ degree | 7~8.5 | 7~8.5 | 7~8 |
Thermal Shock Resistance | degree (Muab tso rau hauv dej) | 800 | 800 | 200 |
Hluav taws xob cov khoom ntawm Beryllia Ceramics
Cov khoom | Chav tsev | 97% OB | 99% BeO | 99 feem pua Al2O3 |
Dielectric tsis tu ncua | 1 MHz | 6.9±0.4 | 6.9±0.4 | 9.9 |
Dielectric zog | KV/mm | 50 | 50 | 15 |
Dielectric Loss | 1 MHz | 4 x 10-4 | 4 x 10-4 | 4 x 10-4 |
Volume Resistivity @ 25 degree | Ω ・cm | ＞1014 | ＞1014 | ＞1014 |
Volume Resistivity @ 300 degree | Ω ・cm | ＞1011 | ＞1011 | ＞108 |
Beryllia Ceramics Daim Ntawv Thov thiab Lwm Yam Kev Lag Luam
● Kev kho mob: roj lasers rau DNA thiab cov ntaub so ntswg tsom xam, confocal thiab wide field fluorescence microscopy khoom, portable defibrillators, telecom infrastructure, transistors thiab terminations nyob rau hauv lub wireless system
● Lasers: siab kawg laser diodes rau kev lag luam tshuab, muaj laser hlau txiav thiab kos cov khoom, ntev ntau fiber optic kis tau tus mob
● Semiconductor Handling Equipment: kawg-effectors thiab caj npab Cheebtsam, wafer chucks, crucibles rau kub melting
● Lub zog: kev tshawb nrhiav roj thiab roj, nyob rau hauv qhov chaw x-ray tsom rau hauv qhov chaw drilling, tsom rau photovoltaic (CPV) systems optoelectronics, transmitters, receivers, modulators, thiab keyboards, hwj chim amplifiers thiab tsav tsheb
● Tub rog thiab Aerospace: radar modules, kev taw qhia modules, microwave thiab millimeter-yoj kev sib txuas lus modules
● Wireless Communications: point-to-point thiab point-to-multipoint radios, satellite kev sib txuas lus modules
Chemical Identifiers
Linear Formula | BeO |
MDL Number | PAB 00003457 |
EC No. | 215-133-1 |
Beilstein/Reaxys No. | N/A |
Pubchem CID | 14775 |
IUPAC npe | Oxoberylium |
SMILES | [Be]=O |
InchI ID nkag mus | InChI=1S/Be.O |
InchI Key | LTPBRCUWZOMYOC-UHFFFAOYSA-N |
Beryllium Oxide Properties (Theoretical)
Compound Formula | BeO |
Molecular Luj | 25.01 |
Qhov tshwm sim | Dawb hmoov |
Melting Point | 2507 degree (4545 degree F) |
Boiling Point | 3900 degree (7052 degree F) |
Qhov ntom | 2.9g / cm3 |
Solubility hauv H2O | N/A |
Hluav taws xob Resistivity | 13 10x Ω-m |
Poisson tus ratio | 0.26 |
Tshwj xeeb kub | 1050 J/kg-K |
Tensile zog | 140 MPa (Qhov kawg) |
Thermal conductivity | 270 W/m-K |
Thermal Expansion | 8.0 µm/m-K |
Young's Modulus | 350 GPa |
Exact Mass | 25.0071 |
Monoisotopic Mass | 25.007097 Nws |
Beryllium Oxide Health & Safety Information
Lus Cim | Kev phom sij |
Cov Lus Qhia Txog Hazard | H301-H315-H317-H319-H330-H335-H350i-H372 |
Hazard Codes | T plus |
Cov Lus Qhia Ua Ntej | P201-P260-P280-P284-P301 plus P310-P305 plus P351 plus P338 |
Flash Point | Tsis siv tau |
Risk Codes | 49-25-26-36/37/38-43-48/23 |
Cov lus hais txog kev nyab xeeb | 53-45 |
RTECS Number | DS 4025 000 |
Cov ntaub ntawv thauj mus los | UN 1566 6.1 / PGII |
WGK Germany | 3 |
GHS Daim duab | GHS06 Pob txha taub hau thiab Hla
GHS08 Health Hazard
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Cim npe nrov: beryllia ceramics, Tuam Tshoj, lwm tus neeg, yuav, muag, ua nyob rau hauv Suav teb
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