公开(公告)号：US20240034691A1

公开(公告)日：2024-02-01

申请号：US18357291

申请日：2023-07-24

Applicant: ROLEX SA

Inventor： Carine Bienvenu ,  Pierre Huguet

IPC: C04B41/45 ,  C04B35/48 ,  C04B41/00 ,  C04B41/50 ,  C04B41/85 ,  G04B19/18 ,  G04B19/12 ,  G04D3/00

CPC classification number: C04B41/4574 ,  C04B35/48 ,  C04B41/4578 ,  C04B41/4535 ,  C04B41/0072 ,  C04B41/4519 ,  C04B41/5007 ,  C04B41/85 ,  G04B19/18 ,  G04B19/12 ,  G04D3/0069 ,  G04D3/0074 ,  C04B2235/3229 ,  C04B2235/3246 ,  C04B2235/3217 ,  C04B2235/663 ,  C04B2235/664 ,  C04B2235/6567 ,  C04B2235/9661

Abstract: The process for manufacturing a ceramic timepiece component includes:—manufacturing an intermediate component (E1) in the form of green body based on ceria-zirconia;—totally or partially debinding (E2) the intermediate component to obtain a debound intermediate component:—partially impregnating (E3) the debound intermediate component with at least one solution comprising at least one metal salt, on one portion only of its surface, to obtain an impregnated debound intermediate component:—sintering and thermally treating (E4) the impregnated debound intermediate component by performing at least one heat treatment under a reducing atmosphere (E42; E41′).

公开(公告)号：US20240010570A1

公开(公告)日：2024-01-11

申请号：US18252329

申请日：2021-11-12

Applicant: ROLEX SA

Inventor： Carine Bienvenu ,  Pierre Huguet ,  Cécile Pigny ,  Ollivier Pujol

IPC: C04B35/488 ,  C04B35/638 ,  C04B35/64 ,  C04B41/45 ,  C04B41/50 ,  C04B41/00 ,  C04B41/87 ,  A44C27/00

CPC classification number: C04B35/4885 ,  C04B35/638 ,  C04B35/64 ,  C04B41/458 ,  C04B41/4535 ,  C04B41/5036 ,  C04B41/0072 ,  C04B41/87 ,  A44C27/001 ,  C04B2235/3246 ,  C04B2235/3225 ,  C04B2235/3217 ,  C04B2235/3206 ,  C04B2235/3272 ,  C04B2235/3279 ,  C04B2235/3241 ,  C04B2235/785 ,  C04B2235/77 ,  C04B2235/616

Abstract: Sintered technical ceramic based on zirconia ZrO2, characterised in that it comprises: —less than or equal to 3.6 wt % and greater than or equal to 2.5 wt % of yttrium oxide Y2O3; —at least one complementary component from hafnium oxide HfO2, alumina Al2O3, and magnesium oxide MgO; —at least one additional element from Fe, Ni, Cr, Zn, Co, Mn, Cu, Ti, Ta, W, Pt, the weight proportion of said at least one additional element being greater than or equal to 0.1 wt %, or greater than or equal to 0.5 wt %, or greater than or equal to 1 wt %, or greater than or equal to 1.5 wt %.