公开(公告)号：US20210057115A1

公开(公告)日：2021-02-25

申请号：US16996715

申请日：2020-08-18

申请人： University of Florida Research Foundation, Inc.

发明人： Ghatu Subhash ,  Ronald Howard Baney ,  James S. Tulenko ,  Edward McKenna ,  Lihao Ge ,  Sunghwan Yeo

IPC分类号： G21C3/62 ,  G21C21/02

摘要： Embodiments of the invention are directed to a method for production of a nuclear fuel pellet by spark plasma sintering (SPS), wherein a fuel pellet with more than 80% TD or more than 90% TD is formed. The SPS can be performed with the imposition of a controlled uniaxial pressure applied at the maximum temperature of the processing to achieve a very high density, in excess of 95% TD, at temperatures of 850 to 1600° C. The formation of a fuel pellet can be carried out in one hour or less. In an embodiment of the invention, a nuclear fuel pellet comprises UO2 and a highly thermally conductive material, such as SiC or diamond.

公开(公告)号：US10790065B2

公开(公告)日：2020-09-29

申请号：US14420702

申请日：2013-08-15

申请人： UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

发明人： Ghatu Subhash ,  Ronald Howard Baney ,  James S. Tulenko ,  Edward McKenna, III ,  Lihao Ge ,  Sunghwan Yeo

IPC分类号： G21C3/62 ,  G21C21/02 ,  G21C3/04

摘要： Embodiments of the invention are directed to a method for production of a nuclear fuel pellet by spark plasma sintering (SPS), wherein a fuel pellet with more than 80% TD or more than 90% TD is formed. The SPS can be performed with the imposition of a controlled uniaxial pressure applied at the maximum temperature of the processing to achieve a very high density, in excess of 95% TD, at temperatures of 850 to 1600° C. The formation of a fuel pellet can be carried out in one hour or less. In an embodiment of the invention, a nuclear fuel pellet comprises UO2 and a highly thermally conductive material, such as SiC or diamond.

公开(公告)号：US20220270768A1

公开(公告)日：2022-08-25

申请号：US17724017

申请日：2022-04-19

申请人： University of Florida Research Foundation, Inc.

发明人： Ghatu Subhash ,  Ronald Howard Baney ,  James S. Tulenko ,  Edward Mckenna, III ,  Lihao Ge ,  Sunghwan Yeo

IPC分类号： G21C3/64 ,  G21C21/02 ,  G21C3/62

摘要： Embodiments of the invention are directed to a method for production of a nuclear fuel pellet by spark plasma sintering (SPS), wherein a fuel pellet with more than 80% TD or more than 90% TD is formed. The SPS can be performed with the imposition of a controlled uniaxial pressure applied at the maximum temperature of the processing to achieve a very high density, in excess of 95% TD, at temperatures of 850 to 1600° C. The formation of a fuel pellet can be carried out in one hour or less. In an embodiment of the invention, a nuclear fuel pellet comprises UO2 and a highly thermally conductive material, such as SiC or diamond.

公开(公告)号：US11410782B2

公开(公告)日：2022-08-09

申请号：US16996715

申请日：2020-08-18

申请人： University of Florida Research Foundation, Inc.

发明人： Ghatu Subhash ,  Ronald Howard Baney ,  James S. Tulenko ,  Edward McKenna, III ,  Lihao Ge ,  Sunghwan Yeo

IPC分类号： G21C3/64 ,  G21C21/02 ,  G21C3/62 ,  G21C3/04

摘要： Embodiments of the invention are directed to a method for production of a nuclear fuel pellet by spark plasma sintering (SPS), wherein a fuel pellet with more than 80% TD or more than 90% TD is formed. The SPS can be performed with the imposition of a controlled uniaxial pressure applied at the maximum temperature of the processing to achieve a very high density, in excess of 95% TD, at temperatures of 850 to 1600° C. The formation of a fuel pellet can be carried out in one hour or less. In an embodiment of the invention, a nuclear fuel pellet comprises UO2 and a highly thermally conductive material, such as SiC or diamond.

公开(公告)号：US10037824B2

公开(公告)日：2018-07-31

申请号：US14226356

申请日：2014-03-26

申请人： University of Florida Research Foundation, Inc.

发明人： Ronald H. Baney ,  James S. Tulenko ,  Kevin W. Powers

IPC分类号： G21C15/28

CPC分类号： G21C15/28 ,  Y02E30/40

摘要： A pressurized water nuclear reactor (PWNR) includes a core having a containment shield surrounding a reactor vessel having fuel assemblies that contain fuel rods filled with fuel pellets, and control rods, and a steam generator thermally coupled to the reactor vessel. A flow loop includes the steam generator, a turbine, and a condenser, and a pump for circulating a water-based heat transfer fluid in the loop. The heat transfer fluid includes a plurality of nanoparticles having at least one carbon allotrope or related carbon material dispersed therein, such as diamond nanoparticles.

公开(公告)号：US20150221398A1

公开(公告)日：2015-08-06

申请号：US14420702

申请日：2013-08-15

申请人： UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.

发明人： Ghatu Subhash ,  Ronald Howard Baney ,  James S. Tulenko ,  Edward Mckenna, III ,  Lihao Ge ,  Sunghwan Yeo

IPC分类号： G21C3/04 ,  G21C21/02

摘要： Embodiments of the invention are directed to a method for production of a nuclear fuel pellet by spark plasma sintering (SPS), wherein a fuel pellet with more than 80% TD or more than 90% TD is formed. The SPS can be performed with the imposition of a controlled uniaxial pressure applied at the maximum temperature of the processing to achieve a very high density, in excess of 95% TD, at temperatures of 850 to 1600° C. The formation of a fuel pellet can be carried out in one hour or less. In an embodiment of the invention, a nuclear fuel pellet comprises UO2 and a highly thermally conductive material, such as SiC or diamond.

摘要翻译： 本发明的实施例涉及通过放电等离子体烧结（SPS）制造核燃料颗粒的方法，其中形成具有大于80％TD或大于90％TD的燃料颗粒。 SPS可以在加工的最高温度下施加受控的单轴压力，以在850至1600℃的温度下达到非常高的密度，超过95％的TD来进行。形成燃料颗粒 可以在一个小时以内进行。 在本发明的一个实施方案中，核燃料颗粒包含UO2和高导热性材料，例如SiC或金刚石。