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8 Result(s)

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  1. No Access

    Article

    Strengthening Effect of Decreased Dislocation Density After Annealing in Pure Aluminum or Copper

    Plastic deformation in metals occurs through the generation and movement of dislocations, leading to strain hardening. The dislocation density has long been known as a measure of work hardening in metals and a...

    Eun-Ae Choi, Yun Soo Lee, Sang ** Lee, Jee Hyuk Ahn… in Metals and Materials International (2024)

  2. No Access

    Article

    Pore characteristics of Lotus-Type Porous Copper Fabricated by Centrifugal Casting

    Lotus-type porous copper was fabricated by a centrifugal casting. The long cylindrical pores aligned along single direction was formed during unidirectional solidification in a hydrogen atmosphere under a cent...

    Sang-Wook Kim, Yun-Soo Lee, Ji-Woon Lee… in Metals and Materials International (2020)

  3. No Access

    Article

    Effect of metal chloride solutions on coloration and biaxial flexural strength of yttria-stabilized zirconia

    The effect of three kinds of transition metal dopants on the color and biaxial flexural strength of zirconia ceramics for dental applications was evaluated. Presintered zirconia discs were colored through imme...

    Gye-Jeong Oh, Kwangmin Lee, Doh-Jae Lee, Hyun-Pil Lim… in Metals and Materials International (2012)

  4. No Access

    Article

    Effects of temperature and catalysts on the synthesis of carbon nanotubes by chemical vapor deposition

    Carbon nanotubes were produced on a quartz plate and a silicon wafer by chemical vapor deposition using xylene as a carbon resource, iron and cobalt as catalysts, and ammonia as a reactive gas. A series of exp...

    Okhyung Lee, Jaehun Jung, Seungkyun Doo, Sung-Soo Kim… in Metals and Materials International (2010)

  5. No Access

    Article

    Carbon nanotubes grown over Fe−Mo−Mg−O composite catalysts

    High quality, high yield carbon nanotubes were synthesized on a composite catalyst using catalytic chemical vapor deposition. The composite catalysts Fe/MgO, Mo/MgO and (Fe, Mo)/ MgO, prepared via the solgel m...

    Yanfang Chen, Doh-Hyung Riu, Yun-Soo Lim in Metals and Materials International (2008)

  6. No Access

    Article

    Effects of ammonia in catalytic chemical vapor deposition in the synthesis of carbon nanotubes

    Chemical vapor deposition with xylene as the carbon resource, a nitrate iron solution as the catalyst, and ammonia gas as the reduction gas was used to investigate the different parameters that influence carbo...

    Hao Zhang, Yanfang Chen, Sung-Soo Kim, Yun-Soo Lim in Metals and Materials International (2008)

  7. No Access

    Article

    Effects of filler and ethanol on mechanical properties of glass-like carbon

    The effects of filler and ethanol on the mechanical properties of glass-like carbon were studied. The specific gravities of glass-like carbons with the filler were higher than those of alcohol added glass-like...

    Yun-Soo Lim, Hee-Seok Kim, Ki-Sang Yoo, Jae Hyung Kim in Metals and Materials International (2003)

  8. No Access

    Article

    A study on the development of engineering plastic piston used in the shock absorber

    A piston is an important component of the shock absorber which determines comfortable riding and handling. Conventional piston is made of metal powder that is pressed in a mold, and then sintered at high tempe...

    Young-Ho Kim, Won-Byong Bae, Dong-Ju Lim, Yun-Soo Suh in Metals and Materials (1998)