Composite material and adhesive bonding material having the composite material

Patent metadata

Field	Value
Publication number	US-10759975-B2
Application number	US-201816208639-A
Country	US
Kind code	B2
Filing date	Dec 4, 2018
Priority date	Dec 4, 2017
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

A composite material is provided that includes at least one first material and particles. The particles have a negative coefficient of thermal expansion and the particles have a sphericity Ψ of at least 0.7. The composite material includes at least 30 vol % of the particles at a particle size of d50≤1.0 μm or at least 40 vol % of the composite material at a particle size d50>1.0 μm.

First claim

What is claimed is:

1. A composite material, comprising:
a first material; and
particles having a negative coefficient of thermal expansion and a sphericity of at least 0.7, wherein the particles are present in at least 30 vol % of the composite material at a particle size of d 50 ≤1.0 μm or are present in at least 40 vol % of the composite material at a particle size d 50 >1.0 μm,
wherein the particles comprise:
i) a compound selected from a group consisting of ZrW 2 O 8 , Y 2 Mo 3 O 12 , LiAlSiO 4 , LiAlSi 2 O 6 , and
ii) a phase system ZrO 2 -WO 3 -Al 2 O 3 -P 2 O 5 , or

wherein the particle comprise Y 2 Mo 3 O 12 , LiAlSi 2 O 6 , or a combination of Y 2 Mo 3 O 12 and LiAlSi 2 O 6 .

2. The composite material of claim 1 , wherein the first material is selected from a group consisting of a polymer, a glass, and combinations thereof.

3. The composite material of claim 1 , wherein the first material is selected from a group of consisting of epoxy resins, glass frits, glass solders, and combinations thereof.

4. The composite material of claim 1 , wherein the negative coefficient of thermal expansion of the particles is in a range from −1.0×10 −6 /K to −100×10 −6 /K in the temperature range from −50° C. to 200° C.

5. The composite material of claim 1 , wherein the particles are spray calcination particles.

6. The composite material of claim 1 , wherein the particles are pulsation reactor particles.

7. An adhesive bonding material, comprising
a composite material including a first material and particles, the particles having a negative coefficient of thermal expansion and a sphericity of at least 0.7, wherein the particles are present in at least 30 vol % of the composite material at a particle size of d 50 ≤1.0 μm or are present in at least 40 vol % of the composite material at a particle size d 50 >1.0 μm,
wherein the particles comprise:
i) a compound selected from a group consisting of ZrW 2 O 8 , Y 2 M 3 O 12 , LiAlSiO 4 , LiAlSi 2 O 6 , and
ii) a phase system ZrO 2 -WO 3 -Al 2 O 3 -P 2 O 5 , or

wherein the particle comprise Y 2 Mo 3 O 12 , LiAlSi 2 O 6 , or a combination of Y 2 Mo 3 O 12 and LiAlSi 2 O 6 .

8. The adhesive bonding of claim 7 , wherein the first material is selected from a group consisting of a polymer, a glass, and combinations thereof.

9. The adhesive bonding material of claim 7 , wherein the first material is selected from a group of consisting of epoxy resins, glass frits, glass solders, and combinations thereof.

10. The adhesive bonding material of claim 7 , wherein the particles comprise a compound selected from a group consisting of ZrW 2 O 8 , Y 2 Mo 3 O 12 , LiAlSiO 4 , LiAlSi 2 O 6 , and a phase system ZrO 2 —WO 3 —Al 2 O 3 —P 2 O 5 .

11. The adhesive bonding material of claim 7 , wherein the negative coefficient of thermal expansion of the particles is in a range from −1.0×10 −6 /K to −100×10 −6 /K in the temperature range from −50° C. to 200° C.

12. The adhesive bonding material of claim 7 , wherein the particles are spray calcination particles.

13. The adhesive bonding material of claim 7 , wherein the particles are pulsation reactor particles.

Assignees

• Schott Ag

Inventors

• Schuhmacher Jörg
• Treis Philipp
• Drewke Jochen
• Schmitt Hans-Joachim
• Hovhannisyan Martun
• Siebers Friedrich
• Menke-Berg Yvonne

Classifications

• H10W74/473

  containing a filler · CPC title

• C03C8/24

  Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders · CPC title

• C03C3/21 Primary

  containing titanium, zirconium, vanadium, tungsten or molybdenum · CPC title

• C03C10/00

  Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition · CPC title

• C03C2214/04

  Particles; Flakes · CPC title