Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Philip J. Whalen"'
Autor:
Stephen C. Danforth, Philip J. Whalen, Amit Bandyopadhyay, S. Iyer, R. B. Clancy, C. Gasdaska, Ahmad Safari, Noshir A. Langrana, J. Mcintosh
Publikováno v:
International Journal of Applied Ceramic Technology. 5:127-137
We present processing (green and sintered), part shrinkage and warping, microstructural characterization, and mechanical properties of Si 3 N 4 made by fused deposition of ceramics (FDC), using optical microscopy, scanning electron microscopy, and X-
Autor:
Philip J. Whalen
Publikováno v:
Research-Technology Management. 50:40-51
OVERVIEW:Growth through innovation requires not only good technical ideas but alignment of priorities between all the functions responsible for successfully developing and commercializing the idea. The ability to create, modify and maintain this alig
Autor:
Philip J Whalen, Suxing Wu, R. McCuiston, Stephen C. Danforth, S. Rangarajan, Ahmad Safari, Noshir A. Langrana, Cheng Dai, Richard B Clancy
Publikováno v:
Materials & Design. 24:681-686
Fused deposition of ceramics (FDC) is one of the developing solid freeform fabrication (SFF) techniques. The successful production of high performance ceramics by the FDC process requires that no defects exist in the green parts. However, build defec
Autor:
Vikram R. Jamalabad, Stephen C. Danforth, Mukesh Agarwala, Philip J. Whalen, Ahmad Safari, Noshir A. Langrana
Publikováno v:
Rapid Prototyping Journal. 2:4-19
Commercial solid freeform fabrication (SFF) systems, which have been developed for fabrication of wax and polymer parts for form and fit and secondary applications, such as moulds for casting, etc., require further improvements for use in direct proc
Publikováno v:
Tribology Transactions. 39:374-379
Relative to most other materials, silicon nitride is very erosion resistant. However, the resulting surface flaws degrade strength - a serious concern for component designers. An in situ reinforced silicon nitride, GS-44, was eroded in a slinger appa
Publikováno v:
Wear. :280-284
Steady-state solid-particle erosion has been investigated on in situ reinforced Si 3 N 4 and the “equivalent” fine-grained hot-isostatically-pressed Si 3 N 4 whose R-curve behaviors are quite different, having K IC values in the long-crack limit
Publikováno v:
Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials: Ceramic Engineering and Science Proceedings
Two silicon nitride materials of the same composition but different microstructures were crept in tension using an apparatus with pneumatic loading laser extensometry. The coarse grained material had significantly greater creep resistance. The anelas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::626086e00bdc6bf415a07b835c926abf
https://doi.org/10.1002/9780470313978.ch47
https://doi.org/10.1002/9780470313978.ch47
Publikováno v:
Journal of the American Ceramic Society. 73:1941-1946
The texture in X-ray diffraction patterns of polycrystalline monoclinic hafnia after surface grinding and annealing has been examined and compared to that expected from ferroelastic twinning. The changes in relative peak intensity were consistent wit
Publikováno v:
SPIE Proceedings.
ATP (Adenosine Triphosphate) is the primary energy transfer molecule present in all living biological cells on Earth. ATP cannot be produced or maintained by anything but a living organism, and as such, its measurement is a direct indication of biolo
Autor:
S. Rangarajan, Stephen C. Danforth, Ahmad Safari, Noshir A. Langrana, I. Pozsgai, R. McCuiston, Philip J. Whalen, B. Harper, R. B. Clancy, Charles J. Gasdaska, J. McIntosh
Publikováno v:
MRS Proceedings. 542
The Fused Deposition of Ceramics (FDC) process is an extrusion based layered manufacturing technique. In this study, the microstructural and property homogeneity of GS44-Si3N4 parts made by FDC is examined. The feedstock, green, and sintered parts we