360
The influence of the addition of filler powder on the microstructure and properties of laser-welded Ti2AlNb joints was comparatively investigated using scanning electron microscopy , transmission electron microscopy , electron back scattered diffraction , and tensile tests .
 material: powder; concept or principle: microstructure; concept or principle: properties; process characterization: scanning electron microscopy; process characterization: transmission electron microscopy; process characterization: diffraction; process characterization: tensile tests
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 material: powder; concept or principle: microstructure; concept or principle: properties; process characterization: scanning electron microscopy; process characterization: transmission electron microscopy; process characterization: diffraction; process characterization: tensile tests