Coated Components of Solar Power Systems and Methods of Making the Same

Patent metadata

Field	Value
Publication number	US-2019157471-A1
Application number	US-201816197357-A
Country	US
Kind code	A1
Filing date	Nov 21, 2018
Priority date	Nov 22, 2017
Publication date	May 23, 2019
Grant date	—

Abstract

A component includes a substrate and a coating system. The coating system includes a base layer that includes at least one of a (M1)AX phase and a (M2)CrX composition. The coating system also includes a top layer that includes a black pigment embedded in a matrix. The matrix is one of a metal-based matrix and a ceramic-based matrix.

First claim

What is claimed is:

1 . A component comprising:
a substrate; and a coating system comprising:
a base layer comprising at least one of a (M1)AX phase and a (M2)CrX composition; and
a top layer comprising a black pigment embedded in a matrix, wherein said matrix is at least one of a metal-based matrix and a ceramic-based matrix.

2 . The component of claim 1 , wherein said base layer comprises said (M1)AX phase having a formula (M1) n+1 AX n , wherein
n=1, 2 or 3, M1 comprises one of Ti, V, Cr, Zr, Nb, Mo, Hf, Sc, and Ta, A comprises one of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb, and X comprises at least one of C and N.

3 . The component of claim 1 , wherein said base layer comprises said (M2)CrX composition comprising:
M2 comprising at least one of Ni, Co, and Fe; and X comprising at least one of Al, Ti, Si, Ta, Nb, Mo, W, Mn, Y, and B.

4 . The component of claim 1 , wherein said base layer has a thickness in a range from about 30 μm to about 500 μm.

5 . The component of claim 1 , wherein an outer surface of said top layer has a maximum roughness profile height Rz and a mean spacing of profile irregularities RSm, wherein Rz is in a range from about 10 μm to about 200 μm, and wherein Rz is greater than 0.1 multiplied by RSm.

6 . The component of claim 1 , wherein said top layer has an absorption coefficient of solar radiation of at least 90 percent.

7 . The component of claim 1 , wherein said base layer comprises an outer surface in contact with said top layer, said outer surface configured to mechanically interlock with said top layer.

8 . The component of claim 1 , wherein said top layer has a thickness in a range of about 2 μm to about 50 μm.

9 . A solar power system comprising:
a central solar receiver comprising at least one heat exchanger component; and at least one heliostat configured to reflect solar energy toward said central solar receiver, wherein said at least one heat exchanger component comprises: a substrate; and a coating system comprising:
a base layer comprising at least one of a (M1)AX phase and a (M2)CrX composition; and
a top layer having a coefficient of absorption of solar radiation of at least 90 percent.

10 . The solar power system of claim 9 , wherein said (M1)AX phase comprises (M1) n+1 AX n , wherein
n=1, 2 or 3, M1 comprises one of Ti, V, Cr, Zr, Nb, Mo, Hf, Sc, and Ta, A comprises one of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb, and X comprises at least one of C and N.

11 . The solar power system of claim 9 , wherein said (M2)CrX composition comprises:
M2 comprising at least one of Ni, Co, and Fe; and X comprising at least one of Al, Ti, Si, Ta, Nb, Mo, W, Mn, Y, and B.

12 . The solar power system of claim 9 , wherein said base layer has a thickness in a range from about 30 μm to about 500 μm.

13 . The solar power system of claim 9 , wherein said top layer comprises a black pigment embedded in a matrix, wherein said matrix is at least one of a metal-based matrix and a ceramic-based matrix.

14 . The solar power system of claim 9 , wherein an outer surface of said top layer has a maximum roughness profile height Rz and a mean spacing of profile irregularities RSm, wherein Rz is in a range from about 10 μm to about 200 μm, and wherein Rz is greater than 0.1 multiplied by RSm.

15 . The solar power system of claim 9 , wherein said top layer has the coefficient of absorption of solar radiation of at least 95 percent.

16 . The solar power system of claim 9 , wherein said base layer comprises an outer surface in contact with said top layer, said outer surface configured to mechanically interlock with said top layer.

17 . A method of making a component, said method comprising:
applying a base layer onto an outer surface of a substrate of the component, wherein the base layer includes at least one of a (M1)AX phase and a (M2)CrX composition; and applying a top layer onto an outer surface of the base layer, wherein the top layer includes a black pigment embedded in a matrix, wherein the matrix is at least one of a metal-based matrix and a ceramic-based matrix.

18 . The method of claim 17 , wherein applying the base layer comprises applying the (M1)AX phase having a formula (M1) n+1 AX n , wherein
n=1, 2 or 3, M1 includes one of Ti, V, Cr, Zr, Nb, Mo, Hf, Sc, and Ta, A includes one of Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, and Pb, and X includes at least one of C and N.

19 . The method of claim 17 , wherein applying the base layer comprises applying the (M2)CrX composition, and wherein
M2 includes at least one of Ni, Co, and Fe, and X includes at least one of Al, Ti, Si, Ta, Nb, Mo, W, Mn, Y, and B.

20 . The method of claim 17 , wherein applying the top layer comprises applying the top layer having a coefficient of absorption of solar radiation of at least 90 percent.

Assignees

• General Electric Technology Gmbh

Inventors

• Bahraini Hasani Maryam
• Parcianello Giulio

Classifications

• G02B1/14

  Protective coatings, e.g. hard coatings · CPC title

• H01L31/02168 Primary

  Electricity · mapped topic

• H01L31/048

  Electricity · mapped topic

• H01L31/043

  Electricity · mapped topic

• H10F19/80

  Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells · CPC title