High borosilicate iav(Kuj tseem muaj lub ntsej muag nyuaj), yog tus cwj pwm los ntawm kev siv cov iav los ua hluav taws xob ua kom muaj hluav taws xob kub siab. Cov iav yog melted los ntawm cua sov sab hauv ntawm lub khob thiab ua tiav los ntawm cov txheej txheem ntau lawm.
Cov coefficient rau thermal expansion yog (3.3 ± 0.1) x10-6/ K, tseem hu ua "borosilicate iav 3.3". Nws yog cov khoom siv iav tshwj xeeb nrog cov nqi nthuav tsawg, kub tsis kam, siab zog, siab lub teeb
Kev hloov pauv thiab cov tshuaj ruaj khov. Vim nws cov kev ua tau zoo heev, nws yog dav siv nyob rau hauv lub hnub ci zog, tshuaj lom neeg lub teeb, chaw tsim hluav taws xob, khoom siv hluav taws xob thiab lwm yam khoom lag luam.
| Silicon Cov Ntsiab Lus | > 80% |
| Ntom ntom (20 ℃) | 3.3 * 10-6/K |
| Coefficient ntawm thermal expansion (20-300 ℃) | 2.23g / cm3 |
| Kub ua hauj lwm kub (104DPAS) | 1220 ℃ |
| Annealing Kub | 560 ℃ |
| Muag kub | 820 ℃ |
| Refronction Index | 1.47 |
| Thermal conductivity | 1.2WM-1K-1 |
Lub sijhawm Post: Oct-22-2019
