Correction: Smirnov et al. Experimental and Statistical Modeling for Effect of Nozzle Diameter, Filling Pattern, and Layer Height of FDM-Printed Ceramic–Polymer Green Body on Biaxial Flexural Strength of Sintered Alumina Ceramic. J. Compos. Sci. 2023, 7, 381

The authors would like to highlight the following correction to their published paper [1].

• Experimental data (weight, diameter, thickness and strength of 3D printed and sintered 60Al₂O₃/40PLA samples) presented in

  Table 1. Weight (w), diameter (d), thickness (h), and strength (σ_H) of 3D-printed and sintered 60Al₂O₃/40PLA samples as a function of selected FDM printing parameters.

  №	Nozzle Diameter, mm	Layer Height, mm	Filling Pattern	Samples						σH, MPa
  				Printed			Sintered
  				w, g	d, mm	h, mm	W, g	D, mm	H, mm
  1	0.6	0.2	Zigzag	2.7	25.9	2.2	2.3	21.6	1.6	242
  2		0.3		2.5	25.9	1.9	2.1	22.3	1.6	245
  3		0.4		2.8	25.8	2.3	2.5	22.2	2.1	268
  4		0.2	Line	2.7	25.9	2.3	2.3	22.4	1.6	277
  5		0.3		2.5	25.5	2.1	2.2	21.9	1.7	315
  6		0.4		2.8	25.7	2.2	2.3	21.9	1.9	332
  7		0.2	Concentric	2.6	25.9	2.0	2.2	22.3	1.6	228
  8		0.3		2.4	25.6	1.9	2.0	22.0	1.6	236
  9		0.4		2.7	25.8	2.1	2.3	21.8	1.8	248
  10	0.8	0.2	Zigzag	2.7	25.4	2.0	2.3	22.1	1.7	215
  11		0.3		2.5	25.4	1.9	2.1	21.9	1.6	260
  12		0.4		2.5	25.3	1.9	2.2	21.5	1.6	265
  13		0.2	Line	2.7	25.8	2.2	2.3	21.1	2.0	280
  14		0.3		2.5	25.7	2.0	2.1	21.8	1.7	292
  15		0.4		2.5	24.8	2.0	2.2	21.0	1.8	322
  16		0.2	Concentric	2.7	25.6	2.0	2.3	22.0	1.9	191
  17		0.3		2.5	25.5	1.9	2.1	22.0	1.7	196
  18		0.4		2.8	25.4	2.0	2.0	21.3	1.7	250
  19	1.0	0.2	Zigzag	2.8	26.1	2.3	2.4	22.5	1.9	275
  20		0.3		2.6	25.3	2.1	2.1	21.9	1.7	280
  21		0.4		2.8	25.1	2.3	2.4	21.3	1.9	295
  22		0.2	Line	2.8	25.2	2.2	2.4	21.5	2.0	277
  23		0.3		2.8	25.2	2.3	2.4	21.9	2.0	298
  24		0.4		3.2	25.4	2.4	2.7	21.9	2.0	327
  25		0.2	Concentric	2.9	25.3	2.3	2.5	21.5	1.9	180
  26		0.3		2.9	25.2	2.3	2.6	21.7	2.0	203
  27		0.4		2.7	25.5	2.2	2.3	21.8	1.9	230

  was changed.
• New text (From the presented results it can be seen that the printed samples with filling type “line” and layer height 0.4 mm have the best mechanical properties. This can be explained by the fact that the fewer horizontal layers in the sample, the fewer voids between them, which negatively affect the mechanical properties. In addition, the greater the line thickness, the fewer horizontal layers need to be extruded to achieve a given disk height, and therefore fewer voids are formed in the printed object. Printing an object with the fill type “line” creates a two-dimensional grid where only one axis is printed along one layer. For the mold sample studied and a density of 100%, this fill type allowed the slicer to place the extruded filaments with as much contact between them as possible, in contrast to the “zigzag” and “concentric” fill patterns) describing the effect of filler pattern on flexural strength has been added to the “Conclusions” section.

The authors state that the scientific conclusions are unaffected. These corrections were approved by the Academic Editor. The original publication has also been updated.