ʻO ka hoʻomaka ʻana o ka quartz fiber:
ʻO ka ikaika tensile 7GPa, modulus tensile 70GPa, ʻoi aku ka maʻemaʻe SiO2 o ka quartz fiber ma mua o 99.95%, me ka nui o 2.2g / cm3.
He mea maʻalahi ka fiber inorganic me ka mau dielectric haʻahaʻa a me ke kūpaʻa wela kiʻekiʻe. ʻO ka quartz fiber yarn he mau pono kūʻokoʻa ma ke kahua o ka wela ultra-kiʻekiʻe a me ka aerospace, he mea hoʻololi maikaʻi ia no ka E-aniani, kiʻekiʻe silica, a me ka basalt fiber, kahi mea e pani ai no ka aramid a me ka fiber carbon. Eia kekahi, he liʻiliʻi kona helu hoʻonui laina, a piʻi ka modulus elastic i ka piʻi ʻana o ka mahana, he mea kakaikahi loa.
Ka nānā 'ana i ka haku mele 'ana o ka quartz fiber
SiO2 | Al | B | Ca | Cr | Cu | Fe | K | Li | Mg | Na | Ti |
>99.99% | 18 | <0.1 | 0.5 | <0.08 | <0.03 | 0.6 | 0.6 | 0.7 | 0.06 | 0.8 | 1.4 |
Poihana:
1. Nā waiwai dielectric: haʻahaʻa dielectric mau
He waiwai dielectric maikaʻi loa ka fiber Quartz, ʻoi aku ka paʻa o nā waiwai dielectric i nā alapine kiʻekiʻe a me nā wela kiʻekiʻe. ʻO ka poho dielectric o ka quartz fiber he 1/8 wale nō ia o ke aniani D ma 1MHz. Ke emi ka mahana ma mua o 700 ℃, ʻaʻole loli ka dielectric mau a me ka dielectric o ka quartz fiber me ka mahana.
2.ʻO ke kūpaʻa wela kiʻekiʻe kiʻekiʻe, ke ola lōʻihi ma ka mahana o 1050 ℃-1200 ℃, ka mahana palupalu 1700 ℃, ke kūpaʻa haʻalulu wela, ke ola lawelawe lōʻihi.
3. Haʻahaʻa thermal conductivity, liʻiliʻi thermal hoʻonui coefficient wale 0.54X10-6/K, ʻo ia ka hapaʻumi o ke aniani aniani maʻamau, ʻaʻohe wela a me ka wela
4. ʻO ka ikaika kiʻekiʻe, ʻaʻohe micro-cracks ma luna o ka ʻili, ʻo ka ikaika tensile a hiki i 6000Mpa, ʻo ia ka 5 mau manawa o ka fiber silica kiʻekiʻe, 76.47% kiʻekiʻe ma mua o ka fiber E-glass.
5. Maikaʻi uila insulation hana, resistivity 1X1018Ω·cm~1X106Ω·cm ma ka mahana 20 ℃ ~ 1000 ℃. He mea hoʻopololei uila kūpono
6. Nā waiwai kemika paʻa, ʻakika, alkaline, wela kiʻekiʻe, anu, hoʻopaneʻe i ke kūpaʻa kūpaʻa. ʻO ke kūpaʻa ʻino
hana |
| Unite | Waiwai | |
Nā waiwai kino | ʻO ka mānoanoa | g/cm3 | 2.2 | |
ʻoʻoleʻa | Mohs | 7 | ||
Koepika Poisson | 0.16 | |||
Ultrasonic propagation velocity | Kiʻi | m·s | 5960 | |
Kaupae | m·s | 3770 | ||
Koefficient damping intrinsic | dB/(m·MHz) | 0.08 | ||
Hana uila | 10GHz dielectric mau | 3.74 | ||
10GHz dielectric poho coefficient | 0.0002 | |||
Ka ikaika dielectric | V·m-1 | ≈7.3×107 | ||
Ke kū'ē i ka 20 ℃ | Ω·m | 1×1020 | ||
Ke kū'ē i ka 800 ℃ | Ω·m | 6×108 | ||
Kū'ē ma V1000 ℃ | Ω·m | 6×108 | ||
Hana wela | Koefficient hoʻonui wela | K-1 | 0.54×10-6 | |
ʻO ka wela kūikawā ma 20 ℃ | J·kg-1·K-1 | 0.54×10-6 | ||
Ka wela wela ma 20 ℃ | W·m-1·K-1 | 1.38 | ||
ʻO ke ana wela (log10η=13) | ℃ | 1220 | ||
ʻO ka mahana palupalu(log10η=7.6) | ℃ | 1700 | ||
Hana ʻōpika | Hōʻike hōʻike | 1.4585 |
Mei-12-2020