Fixed-abrasive nano-grinding plates, related articles, and related methods

A fixed-abrasive grinding plate comprising:

• a) a plurality of micron-sized composite abrasive beads in an amount of 30 wt. % to 95 wt. % on a dry weight basis of the grinding plate;
• b) at least one porosity additive in an amount of 1 wt. % to 40 wt. % on a dry weight basis of the grinding plate;
• c) one or more flux agents in an amount of 1 wt. % to 40 wt. % on a dry weight basis of the grinding plate;
• and
• d) a vitreous matrix in an amount of 3 wt. % to 40 wt. % on a dry weight basis of the grinding plate, wherein the vitreous matrix bonds the abrasive beads.

A fixed-abrasive grinding kit comprising:

• a plurality of fixed-abrasive grinding tools comprising:
• (i) at least one polymeric fixed-abrasive grinding tool comprising a first base plate, and a plurality of first fixed-abrasive grinding segments mounted to the first base plate, the first fixed-abrasive grinding segments comprising a) a plurality of micron-sized composite abrasive beads in an amount of 30 wt. % to 95 wt. % on a dry weight basis of the grinding segments, b) at least one porosity additive in an amount of 1 wt. % to 40 wt. % on a dry weight basis of the grinding segments, c) one or more inorganic fillers in an amount of 1 wt. % to 40 wt. % on a dry weight basis of the grinding plate, and d) at least one polymeric resin in an amount of 3 wt. % to 40 wt. % on a dry weight basis of the grinding segments, wherein the polymeric resin bonds the abrasive beads, wherein the grinding segments have a hardness value in a range of 20 to 120 on the Rockwell Hardness L scale, and the grinding segments have a calculated density in a range 0.8 q/cm3 to 1.8 q/cm3;
• and
• (ii) at least one vitreous fixed-abrasive grinding tool comprising a second base plate, and a plurality of second fixed-abrasive grinding segments mounted to the second base plate, the second fixed-abrasive grinding segments comprising a) a plurality of micron-sized composite abrasive beads in an amount of 30 wt. % to 95 wt. % on a dry weight basis of the grinding segments, b) at least one porosity additive in an amount of 1 wt. % to 40 wt. % on a dry weight basis of the grinding segments, c) one or more flux agents in an amount of 1 wt. % to 40 wt. % on a dry weight basis of the grinding segments, and d) a vitreous matrix in an amount of 3 wt. % to 40 wt. % on a dry weight basis of the grinding segments, wherein the vitreous matrix bonds the abrasive beads.