Advanced Silicon Nitride Components: A Cost Analysis. Schoenung, J. M., Kraft, E. H., & Ashkin, D. Ceramic Engineering and Science Proceedings, 20(4):497–504, 1999. ![Advanced Silicon Nitride Components: A Cost Analysis [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex This paper describes the development and use of two technical cost models, both of which use the process-based cost estimating approach. The first model was developed jointly between Cal Poly Pomona and Cercom, and has been used to estimate the costs for producing a Grade-1, bearing-quality, sintered-reaction bonded silicon nitride (SRBSN) outer race and a SRBSN inner racekhaft for an all-ceramic bearing. The process includes materials preparation steps for the silicon raw material, forming steps (cold isostatic pressing plus green machining), heat treatment steps including nitriding of the silicon compact, grinding, and inspection. The second model was developed by Kyocera with review by Cal Poly Pomona, and has been used to estimate the costs for producing three different sintered silicon nitride components (a nozzle and two rotors). The process steps for these components are similar to those for the bearing components, except the starting material is silicon nitride and different forming operations were evaluated (slip casting, bisque processing and hybrid molding). The methodologies for each technical cost model are described. The costs and cost drivers for representative case studies are discussed, as are the distributions of cost by cost element, such as direct labor, and by unit operation, such as forming.
@article{schoenung_advanced_1999,
title = {Advanced {Silicon} {Nitride} {Components}: {A} {Cost} {Analysis}},
volume = {20},
copyright = {Copyright © 1999 The American Ceramic Society},
shorttitle = {Advanced {Silicon} {Nitride} {Components}},
url = {http://onlinelibrary.wiley.com/doi/10.1002/9780470294574.ch58/summary},
abstract = {This paper describes the development and use of two technical cost models, both of which use the process-based cost estimating approach. The first model was developed jointly between Cal Poly Pomona and Cercom, and has been used to estimate the costs for producing a Grade-1, bearing-quality, sintered-reaction bonded silicon nitride (SRBSN) outer race and a SRBSN inner racekhaft for an all-ceramic bearing. The process includes materials preparation steps for the silicon raw material, forming steps (cold isostatic pressing plus green machining), heat treatment steps including nitriding of the silicon compact, grinding, and inspection. The second model was developed by Kyocera with review by Cal Poly Pomona, and has been used to estimate the costs for producing three different sintered silicon nitride components (a nozzle and two rotors). The process steps for these components are similar to those for the bearing components, except the starting material is silicon nitride and different forming operations were evaluated (slip casting, bisque processing and hybrid molding). The methodologies for each technical cost model are described. The costs and cost drivers for representative case studies are discussed, as are the distributions of cost by cost element, such as direct labor, and by unit operation, such as forming.},
language = {en},
number = {4},
urldate = {2018-01-10},
journal = {Ceramic Engineering and Science Proceedings},
author = {Schoenung, Julie M. and Kraft, Edwin H. and Ashkin, Daniel},
year = {1999},
doi = {10.1002/9780470294574.ch58},
keywords = {Published, Reviewed, electricity, hybrid, nozzle, rotors, silicon},
pages = {497--504},
}
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