Answers.com > Wiki Answers > Categories > Science > Chemistry > What are the physical properties of silicon dioxide?

What are the physical properties of silicon dioxide?

Answer:

density

2.0-2.3 gm/cm3

electrical conductivity

varies widely

breakdown field

>1E7 V/cm in thermal oxides; can be as low as 1E6 V/cm in CVd oxides

thermal conductivity

0.01 W/cm K (bulk)

thermal diffusivity

0.009 cm2/sec (bulk)

coefficient of thermal expansion

0.5 ppm/ K [note Si thermal exp 2.3 ppm/K]

refractive index

1.46 [thermal oxide]

dielectric constant

3.9 [thermal oxide]; CVD oxides vary widely depending on H
First answer by ID1280517083. Last edit by ID1280517083. Question popularity: 3 [recommend question].

Can you answer these Chemistry questions?

What are the location of different metal ores in Tanzania? Answer it!
What does the atomic radius and ionic radius really mean to you? Answer it!
How Can you calculate the normal concentration of Na2S2O35H2O? Answer it!
Why do you suppose sodium carbonate instead of some other base is used for neutralization? Answer it!
What is the chemical reaction of hydrogen? Answer it!

Relevant answers:

Home

Answer these

How long is flight from Barcelona to Chennai India?
In: Flight Times
Answer it!
Why do narcissists just suddenly change to a person you never knew?
In: Narcissism
Answer it!
Can an aye aye hurt you?
In: Endangered, Vulnerable, and Threatened Species
Answer it!
When you breathe from mouth?
In: Care of Horses
Answer it!
» more

Featured guides

» More