Micro-Nano Mechanical Testing Apparatus with Integrated Imaging
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Solution Overview
Problem
Current micro-nano mechanical testing methods lack efficient tools for accurately measuring mechanical properties of materials at the microscopic scale, such as hardness, modulus, and fracture toughness, which are essential for material surface engineering, microelectronic devices, and bioengineering applications.
Innovation Solution
An observable micro-nano mechanical testing apparatus comprising a supporting component, a driving component, and an imaging component, where the driving component applies loads to form indentations, and the imaging component observes and analyzes these indentations to derive mechanical property parameters, utilizing a precise press-down apparatus, force sensor, grating ruler, and microscope for real-time data acquisition and analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional mechanical property testing means are used, then testing can be performed, but measurement precision and observation capability at micro-nano scale are insufficient
Solution Approach 1:
The patent merges the mechanical testing function (indenter applying load) with the observation function (imaging component) into a single integrated apparatus. The imaging component is positioned to directly observe the indentation process in real-time, combining measurement and detection capabilities that were previously separate, thereby achieving high precision measurement at micro-nano scale.
Solution Approach 2:
The patent replaces traditional mechanical observation methods with an imaging component (optical system) to detect and measure indentation features. The imaging component captures images of the indentation marks, and mechanical property parameters are calculated from these images, substituting direct mechanical measurement with optical detection for enhanced precision.
2Productivity
If sample transfer between testing and observation devices is required, then separate functions can be performed, but productivity and time efficiency deteriorate
Solution Approach 1:
The patent combines the testing and observation functions into one apparatus, eliminating the need to transfer samples between separate devices. The bearing component holds the sample in position while the indenter performs testing and the imaging component simultaneously observes the process, greatly improving productivity and eliminating time loss from sample transfer.
3Productivity
If integrated observation and testing is implemented, then productivity improves, but device complexity increases
Solution Approach 1:
The imaging component serves multiple functions: it observes the indentation process in real-time, captures images for analysis, and provides magnification capability. This multi-functional design achieves integrated observation and testing without proportionally increasing complexity, as the same imaging system performs multiple tasks.
Solution Approach 2:
The apparatus is divided into distinct functional modules: bearing component for sample holding, driving component for indenter actuation, and imaging component for observation. This segmentation allows each module to be optimized independently while working together as an integrated system, managing complexity through modular design.
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 apparatus provides high accuracy and efficiency in measuring mechanical properties by enabling real-time observation and analysis of indentation processes, allowing for precise calculation of parameters like hardness, modulus, and fracture toughness without sample transfer, with a wide observable range and adjustable magnification.
Implementation Method 1
a load detection module is fixedly and threadedly connected with a lower end of the output shaft of the precise press-down apparatus
Implementation Method 2
the displacement detection module is fixedly connected to the grating fixing rack
Implementation Method 3
the imaging component includes a microscope, a microscope stand and a Z-axis sliding table, the microscope is fixed on a top of the microscope stand
Data Source
AI summary
An observable micro-nano mechanical testing apparatus and an observable micro-nano mechanical testing method are provided. The apparatus includes a supporting component, a driving component, a bearing component and an imaging component. The driving component and the imaging component are respectively vertically arranged on the supporting component, the bearing component is horizontally arranged on the supporting component and positioned below the driving component and the imaging component, the bearing component is used for bearing a sample and moving the sample, the driving component is used for driving an indenter to apply loads on the sample so as to form an indentation on the sample, and the imaging component is used for observing and analyzing the indentation on the sample.