Hot Impact Densification: A New Method for Producing High Density Ceramic Pellets with Close Shape Tolerances

Autor:	Hans Huschka, Günter Mühling, Heinz Zimmerman, Milan Dipl Ing Dr Hrovat, Lothar Rachor
Rok vydání:	1982
Předmět:	Pressing Nuclear and High Energy Physics Materials science business.product_category Metallurgy Pellets Sintering Condensed Matter Physics Hot pressing Grinding Nuclear Energy and Engineering visual_art visual_art.visual_art_medium Die (manufacturing) Ceramic business Cooling down
Zdroj:	Nuclear Technology. 58:63-68
ISSN:	1943-7471 0029-5450
DOI:	10.13182/nt82-a32958
Popis:	Density and correct diameter of nuclear fuel pellets are usually achieved by sintering and subsequent circular grinding. Hot impact densification (HID) thermally squatted ceramic bodies can be directly high speed precision-molded in a cold die. For thermoshock-sensitive materials, a controlled cooling down procedure of some minutes is added. The feasibility of HID has been demonstrated on the laboratory scale on UO/sub 2/, UC, and some more materials at temperatures between 1700 and 2300/sup 0/C, pressures up to 800 N/mm/sup 2/. Shape tolerances are close, density can be exactly reproduced within a wide range. Tool wear seems to be no problem. Currently, a prototype facility for continuous performance is being developed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1954cd80b9f4e81d81a5453720b821ee https://doi.org/10.13182/nt82-a32958 Zobrazit plný text záznamu