Bulk boron nitride particles, boron nitride powder, method for producing boron nitride powder, resin composition, and heat dissipation member

摘要

One aspect of the present disclosure is a bulk boron nitride particle in which primary particles of hexagonal boron nitride are aggregated, wherein the average value of the area ratio of the primary particles in a cross section is 45% or more, and the primary particle in the cross section is The standard deviation of the area ratio of the particles is less than 25, and the crush strength is 8.0 MPa or more.