Products and Services

Products and Services

Products and Services

Sintered Single-phase Mullite

Sintered Single-phase Mullite

【Product brand】TD-SM42

【Recommended use】Widely used in high-temperature fields such as ceramics, building materials, and casting. It is the preferred material for producing high-end ceramic products, including honeycomb ceramics, ceramic kiln furniture, precision casting molds, and precision ce

Product Introduction

(1) Sintered Single-phase Mullite is made from high-purity aluminum-silica raw materials sourced from specific mining areas as the primary raw material, supplemented with modifying components. It is processed through multi-stage homogenization, fully automated batching, continuous wet co-grinding, and calcination in a high-temperature tunnel kiln.

(2) The product has low impurity content, well-developed mullite crystals, no cristobalite phase, and a high silica-oxygen glass phase uniformly dispersed within the mullite phase framework, forming a uniform and stable structure.

(3) The product exhibits long-term consistent quality, high whiteness, high hardness, low thermal expansion, excellent thermal shock resistance, and high refractoriness.

 

 

 

Products Quality

(1) Chemical and Physical Properties

 

Typical value                

 

  Range

Max  Min

Chemical Composition

Al2O3（%） 

Al₂O₃ (%)

K2O （%）

K₂O (%)

Na2O（%）

Na₂O (%)

SiO2 （%）

SiO₂ (%)

Fe2O3 （%）

Fe₂O₃ (%)

LOI （%）

 

42.0

2.0

0.2

53.3

0.45

0.1

 

43

1.8

 

41

2.2

Mineralogical Composition

 Mullite（%）

 Amorphous Material (%)

 

55

45

 

 

Coefficient of Expansion

20-1000℃（/℃）

(20-1000°C, /°C)

≤4.4×10-6

≤ 4.4×10⁻⁶

 

 

Specific Gravity (g/cm³)

 2.70

 

 

Porosity（%）

 9

 

 

 Refractoriness（℃）

 Initial Deformation

 Squatting

 

1755

＞1770

 

 

Moh’s Hardness (HRC)

7-8

 

 

 

(2) Size Specifications

    

The following are standard particle sizes, which can also be customized according to customer requirements:

For refractory materials: Powder -200 mesh; Aggregate 0-1 mm, 1-3 mm, 3-5 mm, 5-8 mm

For kiln furniture: -22 mesh, -30 mesh, -80 mesh, -120 mesh

For precision casting shells: Powder -200 mesh; Aggregate 16-30 mesh, 30-60 mesh, 22-60 mesh, 50-80 mesh