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Papers by Gretchen Fougere

Research paper thumbnail of On the hardening and softening of nanocrystalline materials

Nanostructured Materials, 1993

Research paper thumbnail of Utilizing an Engineering Design-Based Research Approach to Study and Strengthen a Teacher Preparation Program in STEM at the Secondary Level (Work in Progress)

2021 ASEE Virtual Annual Conference Content Access Proceedings, Feb 20, 2024

Research paper thumbnail of Grain-size dependent hardening and softening of nanocrystalline Cu and Pd

Scripta Metallurgica et Materialia, 1992

Research paper thumbnail of Electrochemical capacitor used for thermal management

Research paper thumbnail of Grain Size Dependent Mechanical Properties in Nanophase Materials

MRS Proceedings, 1994

It has become possible in recent years to synthesize metals and ceramics under well controlled co... more It has become possible in recent years to synthesize metals and ceramics under well controlled conditions with constituent grain structures on a nanometer size scale (below 100 nm). These new materials have mechanical properties that are strongly grain-size dependent and often significantly different than those of their coarser grained counterparts. Nanophase metals tend to become stronger and ceramics are more easily deformed as grain size is reduced. The observed mechanical property changes appear to be related primarily to grain size limitations and the large percentage of atoms in grain boundary environments. A brief overview of our present knowledge about the grain-size dependent mechanical properties of nanophase materials is presented.

Research paper thumbnail of Method of fabricating a high power density electrochemical charge storage device

Research paper thumbnail of Electrochemical cell having a polymer electrolyte

Research paper thumbnail of Mechanical properties of nanophase metals

Nanostructured Materials, 1995

Government under contract No. W-31-109-ENG-38. Accordingly. the US. Government relalns a nonexclu... more Government under contract No. W-31-109-ENG-38. Accordingly. the US. Government relalns a nonexclusive. royalty-free license to publish or reproduce the published form 01 this contrbutlon. or allow others 10 do so. lor U.S. Ganmmnt DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Research paper thumbnail of Improvements in the Synthesis and Compaction of Nanocrystalline Materials

Nanostructured Materials, 1997

NanoSiructured Materials, Vol. 8. No. 3, pp. 243-252, 1997 Pergamon Elsevier Science Ltd 6 © 1997... more NanoSiructured Materials, Vol. 8. No. 3, pp. 243-252, 1997 Pergamon Elsevier Science Ltd 6 © 1997 Acta Metallurgica Inc. Printed in the USA. All rights reserved 0965-9773/97 $17.00 + .00 РП S0965-9773(97)00167-0 IMPROVEMENTS ...

Research paper thumbnail of Processing and mechanical behavior of nanocrystalline Fe

Nanostructured Materials, 1995

Nanocrystalline Fe samples have been produced by inert gas condensation and warm compaction with ... more Nanocrystalline Fe samples have been produced by inert gas condensation and warm compaction with a new consolidation device. The new consolidation device was designed and built to reduce the processing defect population inherent in samples produced in an earlier device and to minimize contamination. The Vickers microhardness of nanocrystalline Fe, while still strongly dependent upon porosity, is 3 to 7 times the microhardness of coarse-grained Fe.

Research paper thumbnail of Mechanical properties of nanophase materials

'l'lm submitted manum'il_ has beea matlmmdby • omtractor of tbe] U.S. Government under ¢ontr•ct N... more 'l'lm submitted manum'il_ has beea matlmmdby • omtractor of tbe] U.S. Government under ¢ontr•ct No. W-31-109-ENG'38. I Acc_dingly, the U.5. GovegnmentmtainJ • nomxdusive, ro3ndty-| free license to publish or m_oduce tim published form of th_I conm_tlo_ of allow others to de so, for U.S. GovernmentI I DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus,product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer-_. '" ,v,._ ence herein to any specific commercial product, process, or service by trade name, trademark, "?°__ ' _ ...... manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom-_ mendation, or favoring by the United States Government or any agency thereof. The views .

Research paper thumbnail of On the hardening and softening of nanocrystalline materials

Nanostructured Materials, 1993

Research paper thumbnail of Utilizing an Engineering Design-Based Research Approach to Study and Strengthen a Teacher Preparation Program in STEM at the Secondary Level (Work in Progress)

2021 ASEE Virtual Annual Conference Content Access Proceedings, Feb 20, 2024

Research paper thumbnail of Grain-size dependent hardening and softening of nanocrystalline Cu and Pd

Scripta Metallurgica et Materialia, 1992

Research paper thumbnail of Electrochemical capacitor used for thermal management

Research paper thumbnail of Grain Size Dependent Mechanical Properties in Nanophase Materials

MRS Proceedings, 1994

It has become possible in recent years to synthesize metals and ceramics under well controlled co... more It has become possible in recent years to synthesize metals and ceramics under well controlled conditions with constituent grain structures on a nanometer size scale (below 100 nm). These new materials have mechanical properties that are strongly grain-size dependent and often significantly different than those of their coarser grained counterparts. Nanophase metals tend to become stronger and ceramics are more easily deformed as grain size is reduced. The observed mechanical property changes appear to be related primarily to grain size limitations and the large percentage of atoms in grain boundary environments. A brief overview of our present knowledge about the grain-size dependent mechanical properties of nanophase materials is presented.

Research paper thumbnail of Method of fabricating a high power density electrochemical charge storage device

Research paper thumbnail of Electrochemical cell having a polymer electrolyte

Research paper thumbnail of Mechanical properties of nanophase metals

Nanostructured Materials, 1995

Government under contract No. W-31-109-ENG-38. Accordingly. the US. Government relalns a nonexclu... more Government under contract No. W-31-109-ENG-38. Accordingly. the US. Government relalns a nonexclusive. royalty-free license to publish or reproduce the published form 01 this contrbutlon. or allow others 10 do so. lor U.S. Ganmmnt DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Research paper thumbnail of Improvements in the Synthesis and Compaction of Nanocrystalline Materials

Nanostructured Materials, 1997

NanoSiructured Materials, Vol. 8. No. 3, pp. 243-252, 1997 Pergamon Elsevier Science Ltd 6 © 1997... more NanoSiructured Materials, Vol. 8. No. 3, pp. 243-252, 1997 Pergamon Elsevier Science Ltd 6 © 1997 Acta Metallurgica Inc. Printed in the USA. All rights reserved 0965-9773/97 $17.00 + .00 РП S0965-9773(97)00167-0 IMPROVEMENTS ...

Research paper thumbnail of Processing and mechanical behavior of nanocrystalline Fe

Nanostructured Materials, 1995

Nanocrystalline Fe samples have been produced by inert gas condensation and warm compaction with ... more Nanocrystalline Fe samples have been produced by inert gas condensation and warm compaction with a new consolidation device. The new consolidation device was designed and built to reduce the processing defect population inherent in samples produced in an earlier device and to minimize contamination. The Vickers microhardness of nanocrystalline Fe, while still strongly dependent upon porosity, is 3 to 7 times the microhardness of coarse-grained Fe.

Research paper thumbnail of Mechanical properties of nanophase materials

'l'lm submitted manum'il_ has beea matlmmdby • omtractor of tbe] U.S. Government under ¢ontr•ct N... more 'l'lm submitted manum'il_ has beea matlmmdby • omtractor of tbe] U.S. Government under ¢ontr•ct No. W-31-109-ENG'38. I Acc_dingly, the U.5. GovegnmentmtainJ • nomxdusive, ro3ndty-| free license to publish or m_oduce tim published form of th_I conm_tlo_ of allow others to de so, for U.S. GovernmentI I DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus,product, or process disclosed, or represents that its use would not infringe privately owned rights. Refer-_. '" ,v,._ ence herein to any specific commercial product, process, or service by trade name, trademark, "?°__ ' _ ...... manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recom-_ mendation, or favoring by the United States Government or any agency thereof. The views .