Cubic boron nitride sintered body and cubic boron nitride sintered body tool
US-9120707-B2 · Sep 1, 2015 · US
Method for preparing titanium nitride-titanium diboride-cubic boron nitride composite material
US9714198B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9714198-B2 |
| Application number | US-201415100857-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2014 |
| Priority date | Jun 9, 2014 |
| Publication date | Jul 25, 2017 |
| Grant date | Jul 25, 2017 |
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Abstract
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A method for preparing a titanium nitride-titanium diboride-cubic boron nitride composite material is disclosed. Titanium powder and cubic boron nitride raw powders are mixed by a planetary ball milling method, and then the titanium nitride-titanium diboride-cubic boron nitride composite material is prepared through the steps of wet mixing, drying, sieving, pre-sintering through a high-temperature vacuum furnace, cold isostatic press molding and high-temperature sintering.
First claim
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The invention claimed is: 1. A method for preparing a titanium nitride-titanium diboride-cubic boron nitride composite material having a desired volume content of cubic boron nitride, cBN product, and using an in-situ reaction represented by the following formula (I): ( 1 - x ) Ti + 2 + x 3 c BN → 2 ( 1 - x ) 3 Ti N + ( 1 - x ) 3 Ti B 2 + x c BN , ( I ) wherein x is a mole fraction of cBN product in the composite material, the method comprising: (1) calculating weights of titanium, Ti powder and cBN powder to be used as raw materials in the reaction of formula (I) based on a desired volume content of cBN product in the composite material, and based on a desired total weight of Ti powder and cBN powder to be used as the raw materials in the reaction of formula (I), and according to the following formulas (II)-(V): V TiN = ( 1 - V cBN ) × ( 2 × M TiN ρ TiN 2 × M TiN ρ TiN + M TiB 2 ρ TiB 2 ) , ( II ) ; V TiB 2 = ( 1 - V cBN )
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of calcined, sintered clinker or ceramics · CPC title
Treatment time · CPC title
Drying, e.g. freeze-drying, spray-drying, microwave or supercritical drying · CPC title
- C04B35/5831Primary
based on cubic boron nitrides {or Wurtzitic boron nitrides, including crystal structure transformation of powder} · CPC title
micrometer sized, i.e. from 1 to 100 micron · CPC title
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- What does patent US9714198B2 cover?
- A method for preparing a titanium nitride-titanium diboride-cubic boron nitride composite material is disclosed. Titanium powder and cubic boron nitride raw powders are mixed by a planetary ball milling method, and then the titanium nitride-titanium diboride-cubic boron nitride composite material is prepared through the steps of wet mixing, drying, sieving, pre-sintering through a high-temperat…
- Who is the assignee on this patent?
- Univ Hohai
- What technology area does this patent fall under?
- Primary CPC classification C04B35/5831. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).