3670
The influence of the HIP process parameters on the density and microstructure of IN718 SLM components is investigated by means of micro X-ray computed tomography and scanning electron microscopy .
 manufacturing process: HIP; concept or principle: parameters; machanical property: density; concept or principle: microstructure; material: IN718; machine or equipment: components; process characterization: X-ray computed tomography; process characterization: scanning electron microscopy
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: HIP, parameters, density, microstructure, IN718, components, X-ray computed tomography, scanning electron microscopy 
Answer:
 manufacturing process: HIP; concept or principle: parameters; machanical property: density; concept or principle: microstructure; material: IN718; machine or equipment: components; process characterization: X-ray computed tomography; process characterization: scanning electron microscopy