公开(公告)号：GB2236750A

公开(公告)日：1991-04-17

申请号：GB9019214

申请日：1990-09-03

Applicant: UNITED TECHNOLOGIES CORP

Inventor： VINE RAYMOND W ,  ANDERSON NEAL P

IPC: F01D5/04 ,  C04B35/50 ,  C04B41/87 ,  C23C4/02 ,  C23C4/10 ,  C23C14/02 ,  C23C14/06 ,  C23C14/08 ,  C23C28/00 ,  F01D5/28

Abstract: A yttria stengthened ceria material is disclosed. The addition of a small amount of yttria (for example 0.5%) significantly strengthens the ceria. The yttria modified ceria is useful as a thermal barrier coating, being applied e.g. by vapour deposition to a superalloy after the application of a bond coat to the superalloy.

公开(公告)号：GB2144357B

公开(公告)日：1987-05-28

申请号：GB8321209

申请日：1983-08-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SALKELD RICHARD W ,  ANDERSON NEAL P ,  GIAMEI ANTHONY F

IPC: B22D27/04 ,  C30B11/14 ,  C30B21/02 ,  B22D27/20

Abstract: In the manufacture of a single crystal article, by the directional solidification of a metal in a ceramic mold the melt-back of a seed crystal is controlled to provide high casting yield. The melt-back, measured as a fraction of the original length of the seed, is preferably between 25-75%, more preferably between 33-67%. Diametrical clearance between the seed and mold is also closely controlled, between 0.06-0.25 mm, to eliminate extraneous grain nucleation.

公开(公告)号：GB2144357A

公开(公告)日：1985-03-06

申请号：GB8321209

申请日：1983-08-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SALKELD RICHARD W ,  ANDERSON NEAL P ,  GIAMEI ANTHONY F

IPC: B22D27/04 ,  C30B11/14 ,  C30B21/02 ,  B22D27/20

Abstract: In the manufacture of a single crystal article, by the directional solidification of a metal in a ceramic mold the melt-back of a seed crystal is controlled to provide high casting yield. The melt-back, measured as a fraction of the original length of the seed, is preferably between 25-75%, more preferably between 33-67%. Diametrical clearance between the seed and mold is also closely controlled, between 0.06-0.25 mm, to eliminate extraneous grain nucleation.

公开(公告)号：FR2550556A1

公开(公告)日：1985-02-15

申请号：FR8313072

申请日：1983-08-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SALKELD RICHARD W ,  ANDERSON NEAL P ,  GIAMEI ANTHONY F

IPC: B22D27/04 ,  C30B11/14 ,  C30B21/02 ,  C30B19/00

Abstract: In the manufacture of a single crystal article, by the directional solidification of a metal in a ceramic mold the melt-back of a seed crystal is controlled to provide high casting yield. The melt-back, measured as a fraction of the original length of the seed, is preferably between 25-75%, more preferably between 33-67%. Diametrical clearance between the seed and mold is also closely controlled, between 0.06-0.25 mm, to eliminate extraneous grain nucleation.

公开(公告)号：GB2236750B

公开(公告)日：1993-11-17

申请号：GB9019214

申请日：1990-09-03

Applicant: UNITED TECHNOLOGIES CORP

Inventor： VINE RAYMOND W ,  ANDERSON NEAL P

IPC: F01D5/04 ,  C04B35/50 ,  C04B41/87 ,  C23C4/02 ,  C23C4/10 ,  C23C14/02 ,  C23C14/06 ,  C23C14/08 ,  C23C28/00 ,  F01D5/28

公开(公告)号：AU559152B2

公开(公告)日：1987-02-26

申请号：AU1782283

申请日：1983-08-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SALKELD RICHARD W ,  ANDERSON NEAL P ,  GIAMEI ANTHONY F

IPC: B22D27/04 ,  C30B11/14 ,  C30B21/02 ,  C30B11/02

Abstract: In the manufacture of a single crystal article, by the directional solidification of a metal in a ceramic mold the melt-back of a seed crystal is controlled to provide high casting yield. The melt-back, measured as a fraction of the original length of the seed, is preferably between 25-75%, more preferably between 33-67%. Diametrical clearance between the seed and mold is also closely controlled, between 0.06-0.25 mm, to eliminate extraneous grain nucleation.

公开(公告)号：CA1211341A

公开(公告)日：1986-09-16

申请号：CA435284

申请日：1983-08-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SALKELD RICHARD W ,  ANDERSON NEAL P ,  GIAMEI ANTHONY F

IPC: B22D27/04 ,  C30B11/14 ,  C30B21/02 ,  B22D25/00

Abstract: In the manufacture of a single crystal article, by the directional solidification of a metal in a ceramic mold the melt-back of a seed crystal is controlled to provide high casting yield. The melt-back, measured as a fraction of the original length of the seed, is preferably between 25-75%, more preferably between 33-67%. Diametrical clearance between the seed and mold is also closely controlled, between 0.06-0.25 mm, to eliminate extraneous grain nucleation.

公开(公告)号：DE4028173C2

公开(公告)日：1999-07-22

申请号：DE4028173

申请日：1990-09-05

Applicant: UNITED TECHNOLOGIES CORP

Inventor： VINE RAYMOND W ,  ANDERSON NEAL P

IPC: F01D5/04 ,  C04B35/50 ,  C04B41/87 ,  C23C4/02 ,  C23C4/10 ,  C23C14/02 ,  C23C14/06 ,  C23C14/08 ,  C23C28/00 ,  F01D5/28 ,  F02C7/24

公开(公告)号：FR2651774B1

公开(公告)日：1995-09-01

申请号：FR9011130

申请日：1990-09-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： VINE RAYMOND W ,  ANDERSON NEAL P

IPC: F01D5/04 ,  C04B35/50 ,  C04B41/87 ,  C23C4/02 ,  C23C4/10 ,  C23C14/02 ,  C23C14/06 ,  C23C14/08 ,  C23C28/00 ,  F01D5/28 ,  C04B35/40 ,  C04B41/88

公开(公告)号：AU1782283A

公开(公告)日：1985-02-14

申请号：AU1782283

申请日：1983-08-09

Applicant: UNITED TECHNOLOGIES CORP

Inventor： SALKELD RICHARD W ,  ANDERSON NEAL P ,  GIAMEI ANTHONY F

IPC: B22D27/04 ,  C30B11/14 ,  C30B21/02 ,  C30B11/02

Abstract: In the manufacture of a single crystal article, by the directional solidification of a metal in a ceramic mold the melt-back of a seed crystal is controlled to provide high casting yield. The melt-back, measured as a fraction of the original length of the seed, is preferably between 25-75%, more preferably between 33-67%. Diametrical clearance between the seed and mold is also closely controlled, between 0.06-0.25 mm, to eliminate extraneous grain nucleation.