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Chemicals: Ceramics

High Purity Silicon Nitride Powder

UBE Silicon Nitride Powder is the high-quality ceramic material which is made by the original Imide-decomposition process.
This process, our proprietary process, has superiority in particle design with purity, morphology, crystal phase, grain size, its distribution and other important properties which can control the microstructure, and consequently it enhances thermomechanical properties required for final products such as strength, fracture toughness, hardness, thermal shock fracture resistance, thermal conductivity, etc.

Since 1986, its going on the market, UBE Silicon Nitride Powder has been used for various final applications in a wide range of industries such as automobile, aerospace, electronics and others, and recognized as a global standard by ceramic manufacturers all over the world.

In addition to SN-E10, its flagship grade, UBE has SN-E05, SN-E03 and SN-ESP in its product lineup.
These grades differ in mainly particle size and distribution and fulfill the properties required for each application.
SN-NLF and SN-XLF are newly added as High Purity Grade for the final applications which require much higher purity.

Product List

*typical value
Type Grade SSA
(m2/g)
O
(wt%)
C*
(wt%)
Cl
(ppm)
Fe*
(ppm)
Ca*
(ppm)
Al*
(ppm)
α–phase content
(wt%)
Standard Grade
(E series)
SN-E10 9~13 < 2.0 0.1 < 100 10 < 1 1 > 95
SN-E05 4~6 10 < 1 1
SN-E03 2~4 11 < 1 1
SN-ESP 6~8 16 1 3
High Purity Grade SN-NLF 7~13 1.3 7 < 1 2
SN-XLF 4~8 0.6 7 < 1 2 > 70

Manufacturing Process

Manufacturing Process

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Standard Grade (E series)

Features

  • High Purity
  • Uniformity / Sharpness of particle size distribution
  • High α–phase crystal content

Specifications

*typical value
Grade SSA
(m2/g)
O
(wt%)
C*
(wt%)
Cl
(ppm)
Fe*
(ppm)
Ca*
(ppm)
Al*
(ppm)
α–phase content
(wt%)
SN-E10 9~13 < 2.0 0.1 < 100 10 < 1 1 > 95
SN-E05 4~6 10 < 1 1
SN-E03 2~4 11 < 1 1
SN-ESP 6~8 16 1 3

Particle Size Distribution

Particle Size Distribution

SEM Images

E10
E10
E05
E05
E03
E03
ESP
ESP

Mechanical Property (sintered)

Sintered Density
Sintered Density
Bending Strength
Bending Strength
Vickers Hardness
Vickers Hardness
SEM Image of a section
of sintered SN-E10
SEM Image of a section of sintered SN-E10

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High Purity Grade

Features

  • High Purity (Fe ≦ 10ppm)
  • 2 types of Particle size distribution (Sharp / Broad)

Specifications

*typical value
Grade SSA
(m2/g)
O
(wt%)
C*
(wt%)
Cl
(ppm)
Fe*
(ppm)
Ca*
(ppm)
Al*
(ppm)
α–phase content
(wt%)
SN-NLF 7~13 1.3 0.1 < 100 7 < 1 2 > 95
SN-XLF 4~8 0.6 7 < 1 2 > 70

Particle Size Distribution

Particle Size Distribution

SEM Images

NLF
NLF
XLF
XLF

Products Inquiry Ube Industries, Ltd. Products Inquiry Form
Chemicals Company,
Polyimide and Specialty Products Business Unit
Ceramics Group

Phone : +81(3)-5419-6186    Fax : +81(3)-5419-6263

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