3.1.4 Material Research

Knowing that a material exists isn't enough. You need to prove it works for your specific application, under your specific constraints. When you write "I chose aluminum because it's lightweight" in your Internal Assessment, examiners don't want opinions—they want evidence: comparative data from materials databases, peer-reviewed studies on fatigue resistance, supplier specifications on alloy grades, sustainability reports on embodied energy.

Professional designers don't guess; they build defensible arguments using primary research (user testing, material testing, expert interviews) and secondary research (technical datasheets, academic journals, manufacturer specifications). This rigorous approach separates amateur intuition from professional credibility—and in the IB, it's the difference between a Level 3 and a Level 7 in your design justification.

Case in Point

When Adidas partnered with Parley for the Oceans to create sneakers from recycled ocean plastic, they didn't just "trust" the material would work. Engineers used the CES (Cambridge Engineering Selector) database to compare tensile strength and abrasion resistance against virgin polyester, conducted 10,000-cycle wear tests in labs, and published sustainability audits verifying the plastic's origin. Their research methodology became the product's marketing story—because the data was irrefutable.

Learning Goals

In this topic, you'll master the research tools and methods that transform material selection from guesswork into evidence-based design—learning how to access databases, interpret technical data, and construct justifications that satisfy both IB examiners and real-world stakeholders.