2271
With the HIP treatment , the CS samples exhibit highly densified morphology and adjusted microstructure that can benefit the improvement of mechanical properties .
 HIP, samples, densified, microstructure, mechanical properties
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:
 HIP, samples, densified, microstructure, mechanical properties