Aluminum Oxide Ceramic crucibles materials properties and uses Boats suppliers

Item

Alumina milling pot

Chemical component

Al2O3

≥99

R2O

≤0.2

Fe2O3

≤0.1

SiO2

≤0.2

Vol.density(g/cm2)

?≥3.80

Apparent Porosity(%)

<1

Bending Strength(Mpa)

>350

Compression strength
(Mpa)

>12000

Permittivity ∑(1MHz)

2

The max.operating temperature

1800

Purpose

Main purpose of crucible?and sagger??is?as a?container?for?analysis and?firing?of material and product applied in various industries.?For example: analysis of coal, melting?of?the?metal,?analysis and firing of chemical raw materials,?analysis and melting of glass, analysis and firing of rare earth??materials and mineral,firing of high

temperature?items such as ceramic?products and melting?of single-crystal?raw?materials.

Use

Under normal circumstances,firstly put? the items which need to be analyzed and fired into?the?crucible?or?sagger.Then heat.?The speed of heating?and?drop in temperature are ?according?to the?characteristics?of?equipment and products,?fast or slow.Because of the thermal expansion of raw material which the crucibles and saggers are made of,?too quick heating or cooling will easily lead to cracking of ?the?crucibles?and?saggers.The best way is slowing down,which can prolong the life of them.