experimental design(doubt)?

[Ivan Balducci]

Hi, members:
Please, I am hoping to get some clarification on this problem:
In my University, (I work in Dental School, in Brazil),
a dentist brought to me your data:
Experimental Unit:
cilindrical shape of Titanium pure ( 72 samples): diameter: 4mmm; height: 5mm
submeted to Shear Test (Instrom)
......................................................
The Ti were to heating in furnace:
24 samples to 430ºC;
24 samples to700ºC
24 samples to and 900ºC
..........
post hoc....
...........
12 samples (from 430ºC) received porcelain type A
12 samples (from 430ºC) received porcelain type B
...........................................................
12 samples (from 700ºC) received porcelain type A
12 samples (from 700ºC) received porcelain type B
.....................................................................
12 samples (from 900ºC) received porcelain type A
12 samples (from 900ºC) received porcelain type B
...............................................................................
Objectives:
Effect Interaction between the variables: Temperature and Porcelain
on Shear Data;
TIA,
ivan
My question is: She made an Split-Plot design ?
Whole plot: Temperature
Split: Porcelain.