Innovnano reports results of fracture toughness tests on its 2YSZ structural ceramic powder

October 26, 2018

Innovnano, Coimbra, Portugal, a manufacturer of structural zirconia ceramics, has reported the results of fracture toughness tests on its Innovnano 2 mol.% Ytrria-Stabilised Zirconia (2YSZ) structural ceramic powder using the single edge pre-cracked bean (SEPB) method with the Japan Fine Ceramics Center, Nagoya, Japan.

The results reported show that 2YSZ has outstanding fracture toughness, combined with high flexural strength and ageing resistance for physically demanding structural ceramic applications. With a value of 7.2 MPa.m1/2, the fracture toughness of 2YSZ was said to far exceed the current structural ceramic of choice, 3YSZ, which has a fracture toughness of just 4.2 MPa.m1/2.

Innovnano produces 2YSZ using Emulsion Detonation Synthesis (EDS), its proprietary technology for the high volume, high quality production of nanostructured powders. This technology produces powders with a nanostructure that provides improved structural properties such as hardness, fracture toughness, flexural strength and resistance to thermal shock.

The material is said to combine all the desired properties of 3YSZ, with the added benefit of improved fracture toughness inherent in lower yttria content YSZs.
Previously, the fracture toughness of Innovnano has been investigated using traditional indentation methods (IF) that demonstrated a fracture toughness value above 15 MPa.m1/2. This is significantly higher than the value for 3YSZ benchmark, which was found to be just 5 MPa.m1/2 using the same method.

To further qualify the outstanding fracture toughness of 2YSZ, additional tests have recently been conducted using a different measurement technique. The single edge precracked beam (SEPB) method (ISO 15732:2003) is recommended for fine grain ceramics to provide a more accurate representation of a material’s fracture toughness.
Results from the study conducted at the Japan Fine Ceramics Center confirmed the fracture toughness of 2YSZ (7.2 MPa.m1/2) to exceed that of 3YSZ benchmark (4.2 MPa.m1/2), further demonstrating the superior properties of Innovnano 2YSZ over other ceramic materials.

André de Albuquerque, Innovnano CEO, commented, “The fracture toughness of Innovnano 2YSZ powder is exceptional. Confirmed by two different measurement techniques to exceed that of 3YSZ, while maintaining its other desirable properties, it offers an exciting structural ceramic alternative.”

In the latest issue of PIM International…

Download PDF

Extensive MIM, CIM industry and sinter-based AM industry news, plus the following exclusive deep-dive articles and reports:

  • Calling all product designers: Discover what Metal Injection Moulding could do for you through these award-winning parts
  • Binder Jetting of a dual-phase steel: Process insight and optimisation using the Master Sintering Curve
  • The rise of filament-based metal AM: New materials and machines present opportunities for MIM producers
  • Sinter-based Additive Manufacturing at the 20th Plansee Seminar on Refractory Metals and Hard Materials
  • Ceramitec 2022: Opportunities abound for producers of technical ceramics by CIM and AM

The latest news from the MIM, CIM and sinter-based AM industries

Don't miss any new issue of PIM International, and stay up to date with the latest industry news. Sign up to our fortnightly newsletter.

Sign up

News from the industry…

    Discover our magazine archive…

    The free-to-access PIM International magazine archive offers unparalleled insight into the world of MIM, CIM and sinter-based AM from a commercial and technological perspective through:

    • Reports on visits to leading part manufacturers and industry suppliers
    • Articles on technology and application trends
    • Information on materials developments
    • Reviews of key technical presentations from the international conference circuit
    • International industry news

    All past issues are available to download as free PDFs or view in your browser.


    Browse the archive


    Looking for suppliers of materials, production equipment and finished MIM, CIM or sinter-based AM parts?

    Discover suppliers of these and more in our advertisers’ index and buyer’s guide, available in the back of PIM International.

    • Metal powders
    • MIM, CIM & AM parts producers
    • Binders & feedstocks
    • Feedstock mixers
    • Furnaces & furnace supplies
    • Atmospheres & gas generation
    • HIP systems & services
    • Injection moulding machines
    • AM technology
    • Debinding systems
    Download PDF
    Share via
    Copy link
    Powered by Social Snap