Three-dimensional (3D) printing method

A three-dimensional (3D) printing method, comprising:

• applying a build material onto a fabrication bed, the build material consisting of:
• an inorganic particle;
• and
• a polymer attached to the inorganic particle, the polymer being nano-beads having an average diameter ranging from about 3 nm to about 1500 nm;
• heating the build material to a temperature ranging from about 5° C. to about 50° C. below a melting point of the polymer;
• selectively applying a coalescent dispersion on a portion of the build material with an inkjet applicator, the coalescent dispersion including:
• a carbon black pigment present in the coalescent dispersion in an amount ranging from about 3.0 wt % to about 6.0 wt % based on the total wt % of the coalescent dispersion;
• and
• inorganic nanoparticles having an average diameter ranging from about 10 nm to about 500 nm, wherein the inorganic nanoparticles make up from about 10 wt % to about 40 wt % of the total wt % of the coalescent dispersion;
• and
• exposing the applied build material and the applied coalescent dispersion to an electromagnetic radiation with a radiation source, whereby the coalescent dispersion absorbs the electromagnetic radiation and heats up the portion of the build material in contact with the coalescent dispersion to fuse the portion of the build material in contact with the coalescent dispersion and to form a layer of a three-dimensional (3D) object.