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Table 1 Sample data indicating trend of shape factors in the experiment

From: A study on the effect of biconvex compact shape factors on prediction of dilution potential from tensile strength–compaction force data of coprocessed diluents

Compaction force (kN)

d (m)

t (m)

w (m)

ΦPz

ΦSh

ΦPt

\(\frac{{\Phi_{{{\text{Sh}}}} }}{{\Phi_{{{\text{Pz}}}} }}\)

\(\frac{{\Phi_{{{\text{Pt}}}} }}{{\Phi_{{{\text{Pz}}}} }}\)

4.98

0.0122

0.00463

0.00263

5.253

12.413

6.448

2.363

1.227

9.96

0.0123

0.00485

0.00277

5.068

11.955

6.172

2.359

1.218

14.95

0.0121

0.00491

0.00274

4.929

11.718

6.061

2.377

1.230

19.92

0.0121

0.00488

0.00254

4.967

12.081

6.363

2.432

1.281

29.89

0.0121

0.00481

0.00259

5.031

12.103

6.332

2.406

1.259

Mean

0.0122

0.00482

0.00265

5.050

12.054

6.275

2.387

1.243

SD

8.94E−05

1.10E−04

9.81E−05

1.26E−01

2.52E−01

1.56E−01

3.10E−02

2.62E−02

  1. ΦPZ, ΦSh, ΦPt: Shape factors according to Podczeck et al. (2013), Shang et al. (2013), Pitt and Heasley (2013), respectively. d diameter, t axial tablet thickness, central cylinder thickness, SD standard deviation