Preparation, microstructure and properties of MgSiN2 ceramics

W.A. Groen; M.J. Kraan; G. With, de

doi:10.1016/0955-2219(93)90012-G

Preparation, microstructure and properties of MgSiN2 ceramics

W.A. Groen, M.J. Kraan, G. With, de

Materials and Interface Chemistry

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

The synthesis of MgSiN2 powder, starting from the metal nitrides, is described. The powder is resistant against oxidn. in air up to 800 DegC. From the prepd. powder, fully dense MgSiN2 ceramics can be sintered at 1550 DegC. The samples were sintered in a closed Mo vessel to prevent evapn. of magnesium nitride. Phase compn., chem. properties and the mech. properties of the as-prepd. ceramics are described. The ceramics are oxidn. resistant in air at least up to 920 DegC. The thermal cond. at room temp. is estd. at 17 W/m K. A reasonable strength of 270 MPa and a rather good fracture toughness of about 4.3 MPa-m1/2 are obtained. A hardness of about 15 GPa and a Young's modulus of 235 GPa have been measured. Considerable improvement in properties is expected when the processing conditions, well within reach, are optimized. [on SciFinder (R)]

Original language	English
Pages (from-to)	413-420
Journal	Journal of the European Ceramic Society
Volume	12
Issue number	5
DOIs	https://doi.org/10.1016/0955-2219(93)90012-G
Publication status	Published - 1993

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title = "Preparation, microstructure and properties of MgSiN2 ceramics",

abstract = "The synthesis of MgSiN2 powder, starting from the metal nitrides, is described. The powder is resistant against oxidn. in air up to 800 DegC. From the prepd. powder, fully dense MgSiN2 ceramics can be sintered at 1550 DegC. The samples were sintered in a closed Mo vessel to prevent evapn. of magnesium nitride. Phase compn., chem. properties and the mech. properties of the as-prepd. ceramics are described. The ceramics are oxidn. resistant in air at least up to 920 DegC. The thermal cond. at room temp. is estd. at 17 W/m K. A reasonable strength of 270 MPa and a rather good fracture toughness of about 4.3 MPa-m1/2 are obtained. A hardness of about 15 GPa and a Young's modulus of 235 GPa have been measured. Considerable improvement in properties is expected when the processing conditions, well within reach, are optimized. [on SciFinder (R)]",

author = "W.A. Groen and M.J. Kraan and {With, de}, G.",

year = "1993",

doi = "10.1016/0955-2219(93)90012-G",

language = "English",

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pages = "413--420",

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T1 - Preparation, microstructure and properties of MgSiN2 ceramics

AU - Groen, W.A.

AU - Kraan, M.J.

AU - With, de, G.

PY - 1993

Y1 - 1993

N2 - The synthesis of MgSiN2 powder, starting from the metal nitrides, is described. The powder is resistant against oxidn. in air up to 800 DegC. From the prepd. powder, fully dense MgSiN2 ceramics can be sintered at 1550 DegC. The samples were sintered in a closed Mo vessel to prevent evapn. of magnesium nitride. Phase compn., chem. properties and the mech. properties of the as-prepd. ceramics are described. The ceramics are oxidn. resistant in air at least up to 920 DegC. The thermal cond. at room temp. is estd. at 17 W/m K. A reasonable strength of 270 MPa and a rather good fracture toughness of about 4.3 MPa-m1/2 are obtained. A hardness of about 15 GPa and a Young's modulus of 235 GPa have been measured. Considerable improvement in properties is expected when the processing conditions, well within reach, are optimized. [on SciFinder (R)]

AB - The synthesis of MgSiN2 powder, starting from the metal nitrides, is described. The powder is resistant against oxidn. in air up to 800 DegC. From the prepd. powder, fully dense MgSiN2 ceramics can be sintered at 1550 DegC. The samples were sintered in a closed Mo vessel to prevent evapn. of magnesium nitride. Phase compn., chem. properties and the mech. properties of the as-prepd. ceramics are described. The ceramics are oxidn. resistant in air at least up to 920 DegC. The thermal cond. at room temp. is estd. at 17 W/m K. A reasonable strength of 270 MPa and a rather good fracture toughness of about 4.3 MPa-m1/2 are obtained. A hardness of about 15 GPa and a Young's modulus of 235 GPa have been measured. Considerable improvement in properties is expected when the processing conditions, well within reach, are optimized. [on SciFinder (R)]

U2 - 10.1016/0955-2219(93)90012-G

DO - 10.1016/0955-2219(93)90012-G

M3 - Article

VL - 12

SP - 413

EP - 420

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

SN - 0955-2219

IS - 5

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