• 专利标题:   Preparation method of high-entropy ceramic-based gradient nano-composite cutter material, involves performing two-step discharge plasma sintering in surface layer.
  • 专利号:   CN115521149-A, CN115521149-B
  • 发明人:   LI X, ZHAO L, SUN J
  • 专利权人:   WEIHAI WEIYIN TOOL CO LTD, UNIV SHANDONG
  • 国际专利分类:   C04B035/56, C04B035/622, C04B035/645
  • 专利详细信息:   CN115521149-A 27 Dec 2022 C04B-035/56 202307 Chinese
  • 申请详细信息:   CN115521149-A CN11310101 25 Oct 2022
  • 优先权号:   CN11310101

▎ 摘  要

NOVELTY - Preparing high-entropy ceramic-based gradient nanocomposite tool material, comprises preparing each layer of powder in each layer of the 5-layer symmetrical gradient layer structure, charging each layer of powder by layered paving method, compressing 5-layer gradient powder into shape, carrying out two-step spark plasma sintering; In the surface layer comprises 96.4-98.7 pts. wt. high-entropy carbide ceramics, 1-3 pts. wt. aluminum dioxide, 0.1-0.2 pts. wt. graphene, 0.2-0.4 pts. wt. carbon nanotubes; In the transition layer comprises 89-93 pts. wt. high-entropy carbide ceramics, 3-5 pts. wt. aluminum dioxide, 3-5 pts. wt. cobalt, 0.8-1.2 pts. wt. compound grain growth inhibitor; in the core layer comprises 89-93 pts. wt. high-entropy carbide ceramics, 6-10 pts. wt. cobalt, and 0.8-1.2 pts. wt. compound grain growth inhibitor ; The compound grain growth inhibitor is Cr3C2 and VC. USE - Preparation method of high-entropy ceramic-based gradient nano-composite cutter material. ADVANTAGE - The method enables to prepare high-entropy ceramic-based gradient nano composite cutter material that has high density and high toughness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a high-entropy ceramic-based gradient nano composite cutter material.