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nūhou

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

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