Wyniki wyszukiwania - BazTech

1

The research of large-size special ceramics after hitting by armour-piercing bullets

Wiśniewski A., Polesiński Z., Dziubak C., Rećko W.

Problemy Techniki Uzbrojenia

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2000

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R. 29, z. 72

51--60

EN

In the article the results of large-size special ceramics research after the hitting by the 12,7 mm and 14,5 mm bullets of the type B-32 are presented. Ceramics after the hitting by the AP bullets were estimated by the scanning microscope observations and the results in the technological characterization aspect of large-size special ceramics were estimated.

PL

W artykule przedstawiono wyniki badania wielkogabarytowej ceramiki specjalnej po ostrzale 12,7 mm oraz 14,5 mm pociskami typu B-32. Przeprowadzono obserwacje ceramiki po ostrzale pociskami AP za pomocą mikroskopu skaningowego, a wyniki oceniono W aspekcie charakterystyki technologicznej wielkogabarytowej ceramiki specjalnej.

2

Properties of Ceramics Derived from Direct Observations of Crack

Librant Z., Boniecki M., Gładki A., Daszkiewicz M., Galas J., Rećko W.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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1999

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Vol. 47, nr 4

365-377

EN

A device was designed and constructed for direct observations of crack growth from notch or form Vickers indent made on the beam bent in a typical testing machine. The device, consisting of horizontal light microscope coupled with CCD camera, is fitted to ZWICK 1446 testing machine by the system of elevator stages driven by stepping motors. This enables precise movements of objective in x, y, z-direction, for adjustment, focusing and tracking on the beam side and bottom surface where the crack propagates. Measuring and registration picture system (framegrabber) is coupled with load and strain system of testing machine and both systems are aided by computer. Optical and electronic magnification is about to 250x. For the case of crack propagated in single-edge notched beam, directly measured crack length was compared with crack length calculated from compliance measurements.

3

Ceramika korundowa na pancerze

Polesiński Z., Dziubak C., Rećko W.

Problemy Techniki Uzbrojenia

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1998

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R. 27, nr 64

55--60

PL

W artykule przedstawiono metodykę prac nad technologią wytwarzania ceramiki korundowej przeznaczonej na pancerze. Omówiono parametry mechaniczne tej ceramiki i zaproponowano kryteria określania skuteczności ochronnej ceramiki.