Mixture Design

Published on: December 7, 2021

Mixture design is intended for experiments where the user is interested in the influence of varied dependent variables (weight or volume percentage of each material) on target properties.

Mixture Design in Alchemy

Mixture design in Alchemy is automatically proposed when the user inputs wt% or vol% for each material and total batch size which will be equal for all experiments from the design.

Constraints

Required constraints for each material are:

Lower and upper bound for varied materials
Constant for non-varied materials (influence of this materials cannot be assessed)

Rules for valid constraints

Rules which need to be respected for properly setting the constraints:

Sum of all lower bounds and constant materials should be lower than 100%
Sum of all higher bounds and constant materials should be higher than 100%