Metal matrix nanocomposites (MMNCs) are anticipated to offer significantly better performance than existing superalloys for additive manufacturing (AM). However, traditional methods of preparing MMNC powder, such as high-energy ball milling, usually involve high cost and high energy consumption. This paper reports experimental results on a novel method to prepare MMNC feedstock powder. Nickel/alumina MMNC powder was successfully produced using electroless plating, containing a high fraction (66 vol. %) of alumina nanoparticles. Then, the MMNC powder was compacted into a disk shape with a hydraulic press and sintered with a tube furnace. After sintering at 1400 °C for 4 hours, the MMNC had a density of 4.16 g/cm3. Scanning electron microscopy observation, and X-ray diffractometry and energy-dispersive X-ray spectroscopy analysis were conducted on the sintered Ni/Al2O3 disk. As the alumina nanoparticles were added to nickel, an increased microhardness of HV0.5 189 was obtained.
- Manufacturing Engineering Division
Preparation of Metal Matrix Nanocomposite Powder Using Electroless Plating
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Li, M, Ma, C, Fang, A, & Pei, Z. "Preparation of Metal Matrix Nanocomposite Powder Using Electroless Plating." Proceedings of the ASME 2018 13th International Manufacturing Science and Engineering Conference. Volume 2: Materials; Joint MSEC-NAMRC-Manufacturing USA. College Station, Texas, USA. June 18–22, 2018. V002T04A004. ASME. https://doi.org/10.1115/MSEC2018-6676
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