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2 341 494

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(51)

IPC

C04B35/488(2006-01-01)

C04B35/626(2006-01-01)

(21) (22)

Application

2007104479/03, 2007-02-05

(24)

Start date

2007-02-05

(22)

Actual filing date

2007-02-05

(45)

Published

2008-12-20

(72)

Inventor

Mel'Nikov Aleksandr Grigor'EvichKul'Kov Sergej NikolaevichSavchenko Nikolaj LeonidovichSablina Tat'Jana Jur'Evna

(73)

Holder

Institut Fiziki Prochnosti I Materialovedenija Sibirskoe Otdelenie Rossijskoj Akademii Nauk So Ran)

COMPOSITE CERAMIC MATERIAL Russian patent published in 2008 - IPC C04B35/488 C04B35/626

Abstract RU 2341494 C2

FIELD: construction.

SUBSTANCE: composite ceramic material comprised of matrix and hardener, contains ultra-disperse powder of Zirconium dioxide (ZrO₂) as matrix and reinforcing particles as hardener. Reinforcing particles are produced from Zirconium dioxide (ZrO₂) and aluminium oxide (Al₂O₃) by plasma-chemical method. Composite ceramic material has the following ratio of matrix and hardener, vol %: reinforcing particles - 15-40, matrix - zirconium dioxide powder is the rest of material. Reinforcing particles include 20-50 vol % of aluminium oxide (Al₂O₃). Reinforcing particles dimensions are 0.1-10 μ. Properties of material: ultimate bending strength σ_bend.=1100-1200 MPa; fracture viscosity K_1c=10-15 MPa m^1/2; hardness HV=12-14 GPa.

EFFECT: development of composite ceramic materials with high fracture viscosity.

2 cl, 3 ex

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RU 2 341 494 C2

Authors

Mel'Nikov Aleksandr Grigor'Evich

Kul'Kov Sergej Nikolaevich

Savchenko Nikolaj Leonidovich

Sablina Tat'Jana Jur'Evna

Dates

2008-12-20—Published

2007-02-05—Filed