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Merck
CN

334103

Silicon nitride

powder, ≥99.9% trace metals basis

Synonym(s):

Trisilicon tetranitride

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About This Item

Linear Formula:
Si3N4
CAS Number:
Molecular Weight:
140.28
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
234-796-8
MDL number:
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Product Name

Silicon nitride, powder, ≥99.9% trace metals basis

InChI key

HQVNEWCFYHHQES-UHFFFAOYSA-N

InChI

1S/N4Si3/c1-5-2-6(1)3(5)7(1,2)4(5)6

SMILES string

N12[Si]34N5[Si]16N3[Si]25N46

assay

≥99.9% trace metals basis

form

powder

particle size

<1 μm

density

3.44 g/mL at 25 °C (lit.)

Quality Level

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General description

Silicon nitride based ceramics possess high fracture toughness, hardness and wear resistance, resistance to corrosion, thermal stability. Two known polymorphs of silicon nitride exist, alpha and beta Si3N4, both have hexagonal structure. A study shows that a third state, cubic spinel structure, has also been synthesized.

Storage Class

11 - Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Synthesis of cubic silicon nitride
Zerr A, et al
Nature, 400, 340-342 null
Silicon Nitride and Related Materials
Riley FR
Journal of the American Ceramic Society. American Ceramic Society, 83(2), 245-265 (2000)
Simone P Rodrigues et al.
Journal of materials science. Materials in medicine, 24(1), 231-239 (2012-10-12)
Commercial femoral head prostheses (cobalt-chromium alloy, yttria partially stabilized zirconia (Y-PSZ) and alumina) and new silicon nitride ceramic ones (nanocrystalline diamond coated and uncoated) were compared in terms of artifact level production by computed tomography (CT). Pelvis examination by CT
Chang-Hyun Park et al.
Optics express, 20(21), 23769-23777 (2012-11-29)
A nanophotonic polarization-independent visible wavelength filter is presented, incorporating a symmetric metal-dielectric resonant structure on quartz substrate, where a sub-wavelength grating, made up of a two-dimensional array of Al square sheets, is integrated with a Si(3)N(4) slab waveguide via an
Tingyin Ning et al.
Optics express, 21(2), 2012-2017 (2013-02-08)
We report on strong UV third-harmonic generation from silicon nitride films and resonant waveguide gratings. We determine the absolute value of third-order susceptibility of silicon nitride at wavelength of 1064 nm to be χ(³) (-3ω,ω,ω,ω) = (2.8 ± 0.6) ×

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