Ceramic Passive Strain Indicator on Turbine Components
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Solution Overview
Problem
Turbine components in gas turbine engines face challenges in measuring strain and stress due to high temperatures and corrosive conditions, as existing measurement tools are unsuitable for these extreme environments.
Innovation Solution
A method for manufacturing a ceramic passive strain indicator on turbine components, featuring at least two reference points, using a ceramic material deposited on the exterior surface, which can withstand high temperatures and facilitate strain measurement through optical recognition techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional measurement tools are used to measure strain and stress on turbine components, then measurement capability is provided, but the tools cannot withstand high temperatures and corrosive conditions
Solution Approach 1:
The patent creates a ceramic replica or copy of the turbine component surface that includes embedded strain sensors. This ceramic copy can withstand high temperatures and corrosive environments, while the embedded sensors provide measurement capability. The ceramic material acts as a surrogate that preserves the mechanical strain characteristics of the original component while being suitable for extreme environments.
Solution Approach 2:
The patent introduces a ceramic coating as an intermediary layer between the turbine component and the measurement system. This ceramic layer can be deposited on the component surface and contains embedded strain indicators. The ceramic acts as a mediator that protects the sensitive measurement elements from direct exposure to high temperatures and corrosive gases while still allowing strain transmission for measurement.
2Power
If turbine components operate at high temperatures above metal melting points, then power generation efficiency is improved, but the metal parts risk melting without protective measures
Solution Approach 1:
The patent applies a composite ceramic coating on the turbine component surface. This ceramic layer has high temperature resistance and can be deposited over the metal component, creating a composite structure where the metal provides mechanical strength and the ceramic provides thermal protection. This allows the component to operate in high temperature environments without the metal reaching its melting point.
Solution Approach 2:
The patent applies protective ceramic coatings and embedded strain indicators to the turbine components before they are exposed to high temperature operation. This preliminary protective measure ensures that when the component operates at high temperatures, the ceramic layer is already in place to protect the metal from thermal damage and corrosion, enabling safe operation above metal melting points.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The ceramic passive strain indicator enables accurate monitoring of strain and stress on turbine components, providing reliable data across high-temperature and corrosive conditions, ensuring the longevity and performance of turbine components.
Implementation Method 1
depositing a ceramic material onto a portion of the exterior surface to form a passive strain indicator
Data Source
AI summary
Methods for manufacturing passive strain indicator on turbine components include providing a turbine component comprising an exterior surface, and, depositing a ceramic material onto a portion of the exterior surface to form a passive strain indicator comprising at least two reference points.