Processing and application of solid state converted high-strain materials

Kelley McNeal; Craig D. Near; Richard L. Gentilman; Martin P. Harmer; Helen M. Chan; Adam Scotch; Venkat S. Venkataramani; Charles Greskovich

doi:10.1117/12.352807

12 July 1999 Processing and application of solid state converted high-strain materials

Kelley McNeal, Craig D. Near, Richard L. Gentilman, Martin P. Harmer, Helen M. Chan, Adam Scotch, Venkat S. Venkataramani, Charles Greskovich

Author Affiliations +

Proceedings Volume 3675, Smart Structures and Materials 1999: Smart Materials Technologies; (1999) https://doi.org/10.1117/12.352807
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

The property enhancement offered by single crystal relaxor ferroelectrics combined with the manufacturability advantages offered by injection molding has the potential of producing single crystal 1-3 piezocomposites at an affordable production-viable rate. Two methods of texturization/recrystallization are being evaluated: an integrated multi-seed process and epitaxial growth. The integrated seed approach involves incorporation of oriented single crystal PMN-PT seeds into injection molding feedstock prior to fabrication of 1-3 ceramic preforms. After sintering, an additional texturization and growth step is carried out. This step is intended to drive recrystallization at multiple sites within the ceramic body extending the oriented texture throughout the matrix. The epitaxial growth approach involves nucleation and growth in the dense ceramic body initiated from a compatible external seed crystal. Recrystallization is achieved through direct contact between a ceramic preform and a seed substrate coupled with appropriate thermal and atmospheric growth conditions.

Citation Download Citation

Kelley McNeal, Craig D. Near, Richard L. Gentilman, Martin P. Harmer, Helen M. Chan, Adam Scotch, Venkat S. Venkataramani, and Charles Greskovich "Processing and application of solid state converted high-strain materials", Proc. SPIE 3675, Smart Structures and Materials 1999: Smart Materials Technologies, (12 July 1999); https://doi.org/10.1117/12.352807

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