Polyester-bonded textured composites with single-crystalline shape memory Ni–Mn–Ga particles

Abstract Single-crystalline Ni 51 Mn 27 Ga 22 particles with the five-layered martensite structure (5M) were prepared by mortar grinding of annealed melt-extracted fibres. These particles were embedded in a stiffness-matched polyester matrix and textured by an alignment field. With increasing compression stress, the magnetic properties of the composites could be continuously changed. Magnetisation measurements of compressed composites, indirectly indicate stress-induced twin boundary motion in the MSM particles.