|About this Abstract
||2011 TMS Annual Meeting & Exhibition
||Surfaces and Heterostructures at Nano- or Micro-Scale and Their Characterization, Properties, and Applications
||Spark Plasma Sintering of Amorphous-Crystalline Laminated Composites
||Tushar M. Borkar, Ashish Singh, Sandip P Harimkar
|On-Site Speaker (Planned)
In this paper, a novel approach involving pulsed electrodeposition (PED) and spark plasma sintering (SPS) of Fe–B–Si amorphous ribbons is presented for the processing of amorphous-crystalline laminated composites. The PED allowed the deposition of nanocrystalline Ni or Cu layers (thickness: <3_m) on the Fe–B–Si amorphous ribbons (thickness: <25_m). The coated ribbons were subsequently stacked and SPS sintered under the influence of pulsed direct current and uniaxial pressure. The SPS sintered amorphous ribbons (uncoated) and amorphous-Ni laminates exhibited partial crystallization of the ribbons and poor lamellar bonding in the composites. With the similar SPS sintering parameters (temperature: 450 ◦C; pressure: 350 MPa; sintering time: 20 min), the amorphous-Ni–Cu laminates were sintered to full densification without undesirable crystallization of the amorphous ribbons.
||Planned: A CD-only volume