Deformation behavior of skeletal composites under mechanical loading
Tóm tắt
The deformation behavior of ceramic-metal composites with a bulk-linked metal skeleton made of highly porous cellular nickel and a stainless wire mesh is examined. It is established that samples of skeletal ceramics remain intact after all types of destructive tests and show high plasticity and strain and fracture energies. A technique is developed for producing ceramics with a bulk-linked metal skeleton by filling a highly porous framework with a ceramic powder and subsequent pressing and sintering of the composite. The technique is tested for two types of skeletal ceramics: structural ceramics such as pyroceramics-highly porous cellular nickel and bioceramics such as hydroxyapatite-highly porous stainless wire skeleton. The hydroxyapatite-based composite has lower bending strength and shock bending energy but higher plasticity and nondestructability than the pyroceramics-based composite.
Tài liệu tham khảo
D. M. Karpinos, L. I. Tuchinskii, and L. R. Vishnyakov, New Composite Materials [in Russian], Vyshcha Shkola, Kiev (1977).
S. M. Kats, V. N. Bogin, S. S. Ordan’yan, et al., “Multilayer metal-oxide composites based on cast plasticized films with powder fillers,” Powder Metall. Met. Ceram., 25, No. 10, 850–856 (1986).
A. E. Rutkovskii and A. A. Ivashin, Pyroceramics-Based Fiber-Reinforced Composites, Preprint No. 98-6, Inst. Probl. Materialoved. NAN Ukrainy, Kiev (1998), p. 25.
P. Ducheyne and L. L. Heneh, “The processing and static mechanical properties of metal fibre reinforced bioglass,” J. Mat. Sci., 17, 595–606 (1982).
K. Ko. Frank, “Preform fiber architecture for ceramic-matrix composites,” Ceramic Bulletin, 68, No. 2, 401–414 (1982).
V. V. Skorokhod, S. M. Solonin, L. F. Ivanchenko, et al., “Skeleton hydroxyapatite and its production,” Declaration Patent No. 71402A, Ukraine, Publ. November 15 (2004).
O. V. Roman, V. V. Skorokhod, and G. R. Fridman, Ultrasonic and Resistometric Inspection in Powder Metallurgy [in Russian], Vysheish. Shk., Minsk (1989).