3382
Printed Ti-6Al-4V parts using these filaments were sintered at temperatures ranging from 900 to 1340 °C and evaluated by x-ray diffraction , scanning electron microscopy and optical microscopy .
 Ti-6Al-4V, filaments, sintered, temperatures, x-ray diffraction, scanning electron microscopy, optical microscopy
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 Ti-6Al-4V, filaments, sintered, temperatures, x-ray diffraction, scanning electron microscopy, optical microscopy