M
M.A. Northrup
Researcher at Lawrence Livermore National Laboratory
Publications - 3
Citations - 666
M.A. Northrup is an academic researcher from Lawrence Livermore National Laboratory. The author has contributed to research in topics: Thin film & Shape-memory alloy. The author has an hindex of 3, co-authored 3 publications receiving 642 citations.
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Journal ArticleDOI
Thin film shape memory alloy microactuators
TL;DR: In this article, a quantitative comparison of several microactuation schemes is made, techniques for depositing and characterizing Ni-Ti-based shape memory films are evaluated, and micromachining and design issues for SMA microactuators are discussed.
Journal ArticleDOI
Mixed-sputter deposition of Ni-Ti-Cu shape memory films
TL;DR: Ni-Ti-Cu shape memory films were mixed-sputter deposited from separate nickel, titanium, and copper targets, providing increased compositional flexibility as discussed by the authors, with transformation temperatures between 20 and 62 °C, a 10-13 °C hysteresis, and up to 330 MPa recoverable stress.
Proceedings ArticleDOI
A Practical Microgripper By Fine Alignment, Eutectic Bonding And Sma Actuation
Abraham P. Lee,Dino R. Ciarlo,Peter Krulevitch,Stacy L. Lehew,Jimmy C. Trevino,M.A. Northrup +5 more
TL;DR: In this article, a silicon micro gripper with a large gripping force, a relatively rigid structural body, and flexibility in functional design is presented, where the actuation is generated by Ni-Ti-Cu shape memory alloy (SMA) films and the stress induced can deflect each side of the microgripper up to 55m for a total gripping motion of 110m.