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【答案】应助回帖
Absolute powder density: The mass of powder per unit of absolute volume
Apparent particle density: The mass of a particle divided by its apparent (particle) volume
Apparent powder density: The mass of a powder divided by its apparent volume
Bulk density: (also called Bulk powder density): The apparent powder
density under defined conditions .
The mass of the particles divided by the volume they occupy that includes
the space between the particles
The ratio of the mass of a collection of discrete pieces of solid material to
the sum of the volumes of: the solids in each piece, the voids within the
pieces, and the voids among the pieces of the particular collection
Effective particle density: The mass of a particle divided by its volume
including open pores and closed pores
Envelope density: The ratio of the mass of a particle to the sum of the
volumes of: the solid in each piece and the voids within each piece, that is,
within close-fitting imaginary envelopes completely surrounding each piece
The ratio of the mass of a particle to the envelope volume of the particle
Skeletal density: The ratio of the mass of discrete pieces of solid material
to the sum of the volumes of: the solid material in the pieces and closed (or
blind) pores within the pieces
Tap density (also called Tap powder density): The apparent powder
density obtained under stated conditions of tapping
Theoretical density: The ratio of the mass of a collection of discrete
pieces of solid material to the sum of the volumes of said pieces, the solid
material having an ideal regular arrangement at the atomic level
True density (also called True particle density); The mass of a particle
divided by its volume, excluding open pores and closed pores |
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