Niterra has filed a patent for a sintered body and cutting tool with unique hard particles and binding phases. The sintered body includes TiCN, (Ti, M) (C, N), and particles of Al, Zr, or Si, with a binding phase of Co or Ni, and Re or Ru. The third hard particle has specific characteristics for improved performance. GlobalData’s report on Niterra gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Niterra, Ceramic membrane fuel cells was a key innovation area identified from patents. Niterra's grant share as of January 2024 was 24%. Grant share is based on the ratio of number of grants to total number of patents.

Cutting tool sintered body with specific hard particles and binding phase

Source: United States Patent and Trademark Office (USPTO). Credit: Niterra Co Ltd

The patent application (Publication Number: US20240026501A1) describes a sintered body for cutting tools, comprising hard particles with specific compositions and a binding phase containing elements like Co, Ni, Re, and Ru. The sintered body includes a combination of first, second, and third hard particles, with the third hard particle having a core portion containing TiCN and a peripheral portion containing (Ti, M) (C, N). The binding phase, which also includes Mo, has a thickness of not greater than 5 nm at grain boundaries between adjacent third hard particles, and each third hard particle contains at least one dislocation in both the core and peripheral portions.

Furthermore, the sintered body may include particles containing Al, Zr, or Si, with AlN as a main component. The patent application also extends to a cutting tool utilizing the described sintered body, with the cutting tool potentially featuring a coating layer on its surface. This innovative sintered body design aims to enhance the performance and durability of cutting tools by incorporating specific hard particles and a binding phase with controlled thickness at grain boundaries, ultimately improving the tool's cutting efficiency and longevity in various applications.

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