Heat insulator and application of the same

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a novel heat insulation material (thermal barrier coating) made from stabilized zirconium dioxide, high-melting-point perovskites, ternary pyrochlore or defect-fluorite oxides, or complex magnetoplumbite-structured oxides. A small amount (0.5-10 wt.%) of sintering additives like silicon, boron, lithium, or beryllium compounds is included to promote microstructural changes that improve the coating's mechanical and thermal stability at high temperatures. The material is especially suited for coating components exposed to temperatures above 1150°C, such as in gas turbines, power plants, or jet engines.

Use CasesContent extracted from patent full text and abstract with AI.

• Thermal barrier coatings for turbine blades in gas or steam power plants.
• Protective coatings for components in jet engines and aerospace turbines.
• Insulating layers for industrial furnaces or other equipment exposed to extreme heat.
• Coatings for automotive or truck diesel engine components exposed to high thermal loads.
• Thermal protection layers for power generation equipment operating at high temperatures.

BenefitsContent extracted from patent full text and abstract with AI.

• Enhanced lifetime and durability of coated parts at high temperatures due to improved microstructure and crack tolerance.
• Ability to use thicker thermal barrier coatings, allowing greater temperature gradients and higher efficiency operation in turbines and engines.
• Improved resistance to thermal cycling and thermal shock, reducing the risk of coating delamination (spallation).
• Greater chemical and oxidation resistance compared to conventional yttria-stabilized zirconia (YSZ) coatings.
• No requirement for special deposition technologies; coatings can be applied via standard processes like plasma spraying or vapor deposition.
• Enables higher operating temperatures for coated components, which can lead to increased engine or turbine efficiency.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

A heat insulation material consists of a first basic component that is fully- or partly stabilised zirconium dioxide, a perowskite with a high melting point, a ternary oxide in pyrochlor- or defect-fluorite structure or a complex oxide in magneto-plumbate-structure, and a second sintering agent with 0.5 to 10 Wt. % with respect to the components of silicon, boron, lithium or beryllium.