1. experimental research method: this is the most commonly used method in the research of materials science, which mainly observes and analyzes the physical and chemical properties of materials through experiments to obtain first-hand data about the properties of materials. The method includes sample preparation, measurement and analysis.

2. Theoretical calculation and simulation: This method mainly predicts and explains the properties of materials through computer simulation and theoretical calculation. This method can greatly reduce the complexity and cost of the experiment, and also provide a deeper theoretical understanding.

3. Literature research method: This method is mainly to understand and master the latest research progress and development trend of materials science by reading and analyzing relevant literature. This method can help researchers find breakthroughs and innovations in research.

4. Data analysis method: This method mainly discovers the properties and laws of materials by analyzing a large number of experimental data. This method requires the use of statistics and data processing techniques.

5. Model construction method: This method mainly describes and explains the properties and behaviors of materials by establishing mathematical models or physical models. This method can help researchers to understand and predict the properties of materials theoretically.

6. Comparative research method: This method mainly finds out the differences and laws by comparing the properties of different materials or the same material under different conditions. This method can help researchers better understand and evaluate the characteristics of materials.

The above are the main research methods of materials science papers. Different research methods have their own advantages and limitations. Researchers need to choose appropriate research methods according to specific research objectives and conditions.