All posts tagged: Ceramic

Scientists develop 3D-printed ceramic bone implants — just like real human bone

Scientists develop 3D-printed ceramic bone implants — just like real human bone

Published by Jenni Sidey

Millions of people each year undergo painful procedures to repair damaged or missing bone. Whether caused by injury, aging or disease, bone loss can dramatically affect mobility, independence and quality of life. Now, researchers at Tampere University in Finland say they may have developed a more personalized and accessible solution using 3D-printed ceramic implants designed to closely imitate natural human bone. The research team created bone-like scaffolds using hydroxyapatite, the same mineral compound found in real bone tissue. By combining this material with advanced ceramic 3D printing, the scientists produced implants with carefully controlled internal structures that support the body’s natural ability to rebuild bone. The findings could mark a major step toward customized bone implants designed specifically for each patient. Researchers believe the technology may eventually replace some traditional bone graft procedures, which often require tissue from donors or the patient’s own body. “By using the same material that nature uses and shaping it through ceramic 3D printing, the implants can be precisely tailored to match a patient’s individual bone defect, without relying on …

Protonic ceramic cells for high-temperature electrolysis at scale

Protonic ceramic cells for high-temperature electrolysis at scale

Published by skeptic

The PEPPER project is paving the way for the scale-up of next-generation steam electrolysis technology. As simple as a water splitting reaction can look, the production of green hydrogen by electrolysis remains an electro-intensive process. In this context, high-temperature steam electrolysis technologies appear as the most promising ones, because a significant share of the energy needed to split the water molecule is supplied in the form of heat rather than electricity. This makes high-temperature steam electrolysis especially advantageous when low-cost heat can be used to generate steam, for example by recovering waste heat from industrial processes. The dominance of solid oxide cell technology Today, the landscape for high-temperature technologies is dominated by solid oxide electrolysis technology, relying on the ability of certain oxides — often zirconia-based — to conduct oxygen ions at temperatures typically above 700°C. These transport properties in zirconia-based materials have been known for a long time: at the end of the 19th century, Walther Nernst made use of this feature to use zirconia as glowing rod in an early form of incandescent …

I tested the new Oura Ring 4 Ceramic and it’s fixed one small but key issue

I tested the new Oura Ring 4 Ceramic and it’s fixed one small but key issue

Published by Sam Flores

Score: 9/10 We like: Ceramic finish is more scratch resistant Excellent health and wellness tracking Great sleep tracking Comfortable to wear 24/7 We don’t like: Monthly subscription cost Activity tracking could be better Charging case costs £99 extra What is the Oura Ring 4 Ceramic? The Oura Ring 4 Ceramic is the latest smart ring from Finnish company Oura and one of the most expensive finishes available, costing £499. It was announced in October 2025 and offers all the same features as the company’s standard Ring 4, which starts at £349. But rather than a metal finish, it is coated in zirconia ceramic to make it more scratch resistant. There are four colour options, including Petal (a pinky purple,) Cloud (a creamy white,) Midnight (a blue black) and Tide (a light green.) Like the Ring 4, it has a multitude of sensors packed inside that offer continuous data tracking of everything from sleep and stress, to heart health and activity. I’ve worn both the Ring 4 and Ring 4 Ceramic – the former for a …

Keychron Q16 HE 8K Review: A Ceramic Disappointment

Keychron Q16 HE 8K Review: A Ceramic Disappointment

Published by skeptic

The internals of this keyboard are unique. Instead of standard Hall effect equipment, the Q16 is one of Keychron’s first keyboards to utilize TMR sensors. These are very similar to standard Hall effect switches, but they have a few key differences. The largest benefits are their improved accuracy and reduced power draw compared to Hall effect sensors, while the downsides are primarily their increased price and a lack of development. For gaming, these switches are great. They’re fast and responsive, returning quickly after being pressed and having quite a few ways to adjust their performance. The Rapid Triggers setting allows for switches to immediately be pressed again after they’re released (as opposed to waiting for the switch to reset past its original actuation point), and the SOCD (simultaneous opposing cardinal direction) settings allow for opposite movements (typically A and D, for strafing) to override one another when both are pressed at the same time. This means when A is pressed, then D is pressed, the D key will take priority and disable input from the …