DKYH type multi physics field micro nano indentation tester

In response to the current research status and existing problems of multi physics micro nano indentation testing technology, a multi physics micro nano indentation tester has been developed and produced, as shown in Figure 1. The multi physics micro nano indentation test curve is shown in Figure 2.

Figure 1 Multi physical field micro nano indentation tester

application

• Metal materials, alloy materials

• ceramic materials

• Polymer materials

• biomaterials

• Biomimetic organization

• composite material

• glass

• Semiconductor devices, thin films

• Hard coatings and other materials

• Multi physics micro nano indentation tester provides precise technical support for material preparation, life sciences, aerospace, and interstellar exploration

• A compact multi physics micro nano indentation tester has been developed, suitable for both traditional indentation testing and multi physics testing

• Piezoelectric actuators, as precision driving loads for indentation testing, can drive large stroke indentation

• Equipped with a control host, dedicated detection and control system, and supporting analysis and processing software, the software has powerful functions, including real-time display of displacement and load signal changes during the testing process and the ability to extract signal fluctuation size, display and generate experimental curves, etc

• The DCYH nanoindentation instrument adopts a piezoelectric actuator load device to ensure measurement accuracy

• The indentation testing module has good repeatability and testing accuracy

• Electric and magnetic multi field coupling loading

(a) Electric+magnetic test curve

(b) Electric field test curve (c) Magnetic field test curve

Figure 2 Multi physical field micro nano indentation test curve

As shown in Figure 2 (a), indentation tests were conducted on four materials, La0.7Sr0.3MnO3, 0.33PIN, 0.35PMN, and 0.32PT, under external electric and magnetic fields. The results showed that both the external electric and magnetic fields significantly increased the contact stiffness of the materials.
As shown in Figure 2 (b), both positive and negative electric fields have an impact on the indentation curve of PMN-PT material, and the results show that the elastic and plastic properties of the material change with the influence of the external electric field.
As shown in Figure 2 (c), the maximum indentation of single crystal nickel material increased by an average of 2.67% and the residual indentation depth increased by an average of 4.14% under an external magnetic field of 2000Oe. The results show that the elastic modulus of the material increased by 31.36% and the hardness decreased by 6.77%.