3823
Further increase of the heat treatment temperature to 350 °C induced severe localized corrosion attacks near the coarse Si particles , ascribed to the increased potential difference between the coalesced Si particles and aluminum matrix galvanic couple .
 manufacturing process: heat treatment; concept or principle: corrosion; material: Si; concept or principle: particles; material: Si; concept or principle: particles; material: aluminum
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: heat treatment, corrosion, Si, particles, Si, particles, aluminum 
Answer:
 manufacturing process: heat treatment; concept or principle: corrosion; material: Si; concept or principle: particles; material: Si; concept or principle: particles; material: aluminum