Techniques for controlling build material flow characteristics in additive manufacturing and related systems and methods
US-2022250149-A1 · Aug 11, 2022 · US
Inorganic oxide particles
US12595184B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12595184-B2 |
| Application number | US-202318863072-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2023 |
| Priority date | Dec 26, 2022 |
| Publication date | Apr 7, 2026 |
| Grant date | Apr 7, 2026 |
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Abstract
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Inorganic oxide particles having a D50 of 5.5-9.0 μm and a pressure loss of 1.75-2.81 kPa in air permeation at a pressure of 12 kPa.
First claim
Opening claim text (preview).
The invention claimed is: 1 . An inorganic oxide particle, wherein D50 is 5.5 to 9.0 μm, a volume ratio of a particle having a particle diameter of 2.0 μm or more is 90.0% by volume or more, and a pressure loss for permeation of air under a pressure of 12 kPa is 1.75 to 2.81 kPa. 2 . The inorganic oxide particle according to claim 1 , wherein (D10+D90)/D50 is 2.7 or more. 3 . The inorganic oxide particle according to claim 1 , wherein a BET specific surface area is 0.10 to 10.00 m 2 /g. 4 . The inorganic oxide particle according to claim 1 , wherein a volume ratio of a particle having a particle diameter of 16.8 to 60.0 μm is 4.3 to 33.5% by volume. 5 . The inorganic oxide particle according to claim 1 , which is alumina. 6 . The inorganic oxide particle according to claim 1 , wherein circularity is 0.90 or more. 7 . The inorganic oxide particle according to claim 1 , which is used in a powder additive manufacturing method. 8 . The inorganic oxide particle according to claim 5 , wherein a press-molding bulk density under a pressure of 98 MPa is 2.45 to 2.54 g/cm 3 . 9 . A sintered body of the inorganic oxide particle according to claim 1 . 10 . A method for producing a binder-jet additively manufactured article, the method comprising: applying a liquid containing a binder to the inorganic oxide particle according to claim 1 to form a three-dimensional additively manufactured article. 11 . A method for producing a sintered body, the method comprising: applying a liquid containing a binder to the inorganic oxide particle according to claim 1 to form a three-dimensional additively manufactured article; and carrying out a sintering treatment on the three-dimensional additively manufactured article. 12 . The inorganic oxide particle according to claim 1 , wherein a ratio of D50 to D10 (D50/D10) of the inorganic oxide particles is 2.0 to 2.3.
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Inventors
Classifications
Bimodal, multi-modal or multi-fraction · CPC title
micrometer sized, i.e. from 1 to 100 micron · CPC title
Spheres · CPC title
Burning or sintering processes (C04B33/32 takes precedence {; powder metallurgy B22F}) · CPC title
Minute sintered entities, e.g. sintered abrasive grains or shaped particles such as platelets (abrasives C09K3/14) · CPC title
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- What does patent US12595184B2 cover?
- Inorganic oxide particles having a D50 of 5.5-9.0 μm and a pressure loss of 1.75-2.81 kPa in air permeation at a pressure of 12 kPa.
- Who is the assignee on this patent?
- Resonac Corp
- What technology area does this patent fall under?
- Primary CPC classification B33Y10/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 07 2026 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).