RU2018106636A - Способ производства полностью керамического микроинкапсулированного ядерного топлива - Google Patents

Способ производства полностью керамического микроинкапсулированного ядерного топлива Download PDF

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RU2018106636A
RU2018106636A RU2018106636A RU2018106636A RU2018106636A RU 2018106636 A RU2018106636 A RU 2018106636A RU 2018106636 A RU2018106636 A RU 2018106636A RU 2018106636 A RU2018106636 A RU 2018106636A RU 2018106636 A RU2018106636 A RU 2018106636A
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fuel
ceramic
mixture
ceramic powder
mold
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RU2018106636A
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RU2018106636A3 (ru
RU2723561C2 (ru
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Лэнс Льюис СНИД
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Ультра Сейф Ньюклеар Корпорейшн
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Claims (19)

1. Способ, содержащий
обеспечение множества частиц трехструктурно-изотропического топлива;
смешивание упомянутого множества частиц трехструктурно-изотропического топлива с керамическим порошком с образованием смеси;
помещение смеси в пресс-форму; и
приложение тока к пресс-форме для спекания смеси в топливный элемент посредством спекания постоянным током.
2. Способ по п.1, дополнительно содержащий добавление смеси в керамическую топливную втулку перед этапом помещения смеси в керамической топливной втулке в пресс-форму.
3. Способ по п.2, причем керамическая топливная втулка содержит карбид кремния (SiC).
4. Способ по п.2, причем керамическая топливная втулка имеет тот же состав, что и керамический порошок.
5. Способ по п.1, причем пресс-форма включает в себя более одного параллельного отверстия, а способ включает в себя помещение смеси упомянутого множества частиц трехструктурно-изотропического топлива с керамическим порошком в каждое из отверстий.
6. Способ по п.2, причем пресс-форма включает в себя более одного параллельного отверстия, а способ включает в себя помещение керамической топливной втулки, содержащей смесь упомянутого множества частиц трехструктурно-изотропического топлива с керамическим порошком, в каждое из отверстий.
7. Способ по п.6, причем пресс-форма содержит графит.
8. Способ по п.1, причем топливный элемент имеет точный размер внешней части на протяжении всего процесса спекания, без дополнительной обработки, происходящей после процесса спекания, для получения точного размера внешней части.
9. Способ по п.1, причем керамический порошок содержит карбид кремния (SiC).
10. Способ по п.9, причем керамический порошок дополнительно содержит спекающие добавки.
11. Способ по п.10, причем спекающие добавки содержат оксид алюминия или оксид редкоземельного металла или их комбинацию.
12. Способ по п.11, причем оксид редкоземельного металла является оксидом иттрия.
13. Способ по п.10, причем керамический порошок включает в себя спекающие добавки в количестве до 10 массовых процентов от всей массы керамического порошка.
14. Способ по п.9, причем топливный элемент содержит квазистехиометрический SiC.
15. Способ по п.14, причем полное время работы для формирования топливного элемента составляет менее часа.
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