EFFECT OF TITANIUM NITRIDE COATING
ON STRESS STRUCTURAL INHOMOGENEITY IN OXIDE-CARBIDE CERAMIC.
PART 3. ACTION OF DISTRIBUTED FORCE LOAD
M. A. Volosova,
S. N. Grigor’ev,
and V. V. Kuzin
Translated from Novye Ogneupory, No. 12, pp. 35 – 40, December, 2014.
Original article submitted May 30, 2014.
The effect of a titanium nitride coating on stress structural inhomogeneity in oxide-carbide ceramic under ac
tion of a distributed force load is studied. The effect of a coating on properties determining stress structural
inhomogeneity within ceramic is established. A requirement is noted for considering stress structural
inhomogeneity in designing objects from oxide-carbide ceramic with a coating.
Keywords: ceramic, coating, stress structural inhomogeneity, distributed force load, structural element.
The aim of research is analysis of the effect of a titanium
nitride coating on the stress-strained state of structural ele-
ments of oxide-carbide ceramic under action of a concen-
trated force. Solution of this scientific problem will supple-
ment features of the effect of force loads on stress-strained
state of ceramic materials provided in [1 – 4].
The procedure for revelation and analysis of structural
inhomogeneity of stresses s
and stress intensity s
in a surface (surface layer) of ceramic structural elements un
der action of an external load has been provided in . More
detailed aspects of this procedure are given in [6 – 9].
RESULTS AND DICUSSION
A plate of oxide-carbide ceramic without a coating (sys
)–SCh32) and with a titanium nitride
coating 5 mm thick (system TiC–MgO–Al
under action of a distributed load P deforms by the scheme
presented in Fig. 1. Grains in ceramic of the system
)–SCh32 (Fig. 1a ) and (TiC–MgO–
)– TiN–SCh32 (Fig. 1b ) from starting position 3 move
Refractories and Industrial Ceramics Vol. 55, No. 6, March, 2015
1083-4877/15/05506-0565 © 2015 Springer Science+Business Media New York
Parts 1 and 2 published in Novye Ogneupory No. 8, pp. 28 – 31,
and No. 10, pp. 77 – 82 of 2014.
FGBOU VPO Moscow State Technological University Stankin,
Fig. 1. Diagrams of ceramic of the systems (TiC–MgO–Al
SCh32 (a) and (TiC–MgO–Al
)–TiN–SCh32 (b ) under action of
distributed force P = 4.0 ´ 10