DIELECTRIC MATERIALS

• US 20110281718A1
• Filed: 03/30/2011
• Published: 11/17/2011
• Est. Priority Date: 05/12/2010
• Status: Active Grant

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Matani, Lohit, Krishna, Kalaga Murali
• Granted Patent: US 8,586,495 B2
• Time in Patent Office: Days
• US Class Current: 501/138
• CPC Class Codes: C04B 2235/3208 Calcium oxide or oxide-forming salts thereof, e.g. lime
• CPC Class Codes: C04B 2235/3213 Strontium oxides or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3215 Barium oxides or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3217 Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
• CPC Class Codes: C04B 2235/3227 Lanthanum oxide or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3234 Titanates, not containing zirconia
• CPC Class Codes: C04B 2235/3236 Alkaline earth titanates
• CPC Class Codes: C04B 2235/3241 Chromium oxides, chromates, or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3244 Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
• CPC Class Codes: C04B 2235/3281 Copper oxides, cuprates or oxide-forming salts thereof, e.g. CuO or Cu2O
• CPC Class Codes: C04B 2235/3298 Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
• CPC Class Codes: C04B 2235/40 Metallic constituents or additives not added as binding phase
• CPC Class Codes: C04B 2235/445 Fluoride containing anions, e.g. fluosilicate
• CPC Class Codes: C04B 2235/483 Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
• CPC Class Codes: C04B 2235/604 Pressing at temperatures other than sintering temperatures
• CPC Class Codes: C04B 2235/652 Reduction treatment C04B2235/664 takes precedence
• CPC Class Codes: C04B 2235/656 characterised by specific heating conditions during heat treatment
• CPC Class Codes: C04B 2235/6567 Treatment time
• CPC Class Codes: C04B 2235/658 Atmosphere during thermal treatment
• CPC Class Codes: C04B 2235/6582 Hydrogen containing atmosphere
• CPC Class Codes: C04B 2235/6585 : at an oxygen percentage above that of air
• CPC Class Codes: C04B 2235/80 : Phases present in the sintered or melt-cast ceramic products other than the main phase
• CPC Class Codes: C04B 2235/85 : Intergranular or grain boundary phases
• CPC Class Codes: C04B 35/462 : based on titanates
• CPC Class Codes: C04B 35/465 : based on alkaline earth metal titanates
• CPC Class Codes: C04B 35/4682 : based on BaTiO3 perovskite phase
• CPC Class Codes: C04B 35/47 : based on strontium titanates
• CPC Class Codes: H01F 38/14 : Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10

Abstract

A dielectric material is provided. The material includes α[Ca_1-x-yBa_xSr_y(Ca_1-zCu_z)Cu_2-pLa_2p/3Ti_4-qM_qO_12-δ]+(1−α)[Ba_rSr_1-rTiO₃], wherein M is aluminum, chromium, zirconium, or combinations thereof; x can vary between the value of zero and 0.1 such that 0≦x≦0; y, z, and r can vary between the value of zero and 1 such that 0≦y≦1, 0≦z≦1, and 0≦r≦1; p and q can vary between the value of zero and 0.1 such that 0≦p≦0.1 and 0≦q≦0.1; δ can vary between the value of zero and 0.05 such that 0≦δZ≦0.05; and α can vary between the value of 0.5 and 1 such that 0.5≦α≦1, with a proviso that when x=y=0 and z=α=1, p and q are greater than zero; and when x=y=z=0, p and q are not simultaneously zero. A dielectric component including the dielectric material and a system including the dielectric component are provided.

Claims

1. A material comprising:

α

[Ca_1-x-yBa_xSr_y(Ca_1-zCu_z)Cu_2-pLa_2p/3Ti_4-qM_qO_12-δ

]+(1−

α

)[Ba_rSr_1-rTiO₃], wherein M is aluminum, chromium, zirconium, or combinations thereof, and

0≦

x≦

0.1, 0≦

y≦

1, 0≦

z≦

1, 0≦

p≦

0.1, 0≦

q≦

0.1, 0≦

δ

≦

0.05, 0≦

r≦

1, and 0.5≦

α

≦

1,

with a proviso that

when x=y=0 and z=α

=1, p and q are greater than zero; and

when x=y=z=0, p and q are not simultaneously zero.

2. The material of claim 1, comprising CaCu_2.9La_0.067Ti_3.94Al_0.06O_12-δ

.

3. The material of claim 1, comprising CaCu_2.9La_0.067Ti_3.99Zr_0.01O_12-δ

.

4. The material of claim 1, comprising CaCu_2.9La_0.067Ti_3.98Cr_0.02O_12-δ

.

5. The material of claim 1, comprising CaCu₃Ti_3.92Cr_0.02Al_0.06O_12-δ

.

6. The material of claim 1, comprising Ca₂Cu₂Ti_3.94Al_0.06O_12-δ

.

7. The material of claim 1, comprising Ca₂Cu₂Ti_3.98Cr_0.02O_12-δ

.

8. The material of claim 1, comprising Ca₂Cu_4.9La_0.067Ti₄O_12-δ

.

9. The material of claim 1, comprising Ca₂Cu₂Ti_3.99Zr_0.01O₁₂.

10. The material of claim 1, comprising Ba_0.01Sr_0.1Ca_0.89Cu₃Ti₄O₁₂.

11. The material of claim 1, comprising 0.6[CaCu₃Ti_3.94Al_0.06O_12-δ

]+0.4[SrTiO₃].

12. The material of claim 1, comprising 0.6[CaCu₃Ti_3.98Cr_0.02O_12-δ

]+0.4[SrTiO₃].

13. A dielectric component comprising:

a material comprising

α

[Ca_1-x-yBa_xSr_y(Ca_1-zCu_z)Cu_2-pLa_2p/3Ti_4-qM_qO_12-δ

]+(1−

α

)[Ba_rSr_1-rTiO₃], wherein M is aluminum, chromium, zirconium, or combinations thereof, and

0≦

x≦

0.1, 0≦

y≦

1, 0≦

z≦

1, 0≦

p≦

0.1, 0≦

q≦

0.1, 0≦

δ

≦

0.05, 0≦

r≦

1, and 0.5≦

α

≦

1,

with a proviso that

when x=y=0 and z=α

=1, p and q are greater than zero; and

when x=y=z=0, p and q are not simultaneously zero.

14. A system comprising:

a dielectric component comprising a material comprising

α

[Ca_1-x-yBa_xSr_y(Ca_1-zCu_z)Cu_2-pLa_2p/3Ti_4-qM_qO_12-δ

]+(1−

α

)[Ba_rSr_1-rTiO₃], wherein M is aluminum, chromium, zirconium, or combinations thereof, and

0≦

x≦

0.1, 0≦

y≦

1, 0≦

z≦

1, 0≦

p≦

0.1, 0≦

q≦

0.1, 0≦

δ

≦

0.05, 0≦

r≦

1, and 0.5≦

α

≦

1,

with a proviso that

when x=y=0 and z=α

=1, p and q are greater than zero; and

when x=y=z=0, p and q are not simultaneously zero.