In Part 2 of this series we dig deeper into the specifics of laterites, one of the two main nickel ore types and look at smelting, the most common processing technique.
Heather Allain, Executive Director, Materials Technology Institute (MTI), tells us about her passion for materials and the importance of MTI’s work to provide awareness of safe, reliable and sustainable materials use.
Let's dive into this new series of articles on sustainability, treatment processes and innovations in nickel production, starting with nickel ores.
Nickel can be found in many forms from nanowires to stainless steel alloys. But what are the properties of nickel that make it an essential element in batteries?
Green hydrogen has almost unlimited potential as a replacement for fossil fuels and will be an essential contributor to getting to net-zero. Nickel-containing stainless steel is a sustainable companion on the path to a climate neutral future.
As industries around the globe work to reduce emissions of carbon dioxide, there is also effort to prevent its escape into the atmosphere by sequestering it. These technologies are known as carbon, capture and storage.
Can you mix stainless alloys in the same construction? What guidelines are there for mixing and matching alloys for success? Let’s look at a few cases.
Materials selection for any piece of equipment or a process system is rarely a simple task, unless you are exactly replicating something successful. Often engineers will have a checklist to help them narrow down the choices, eliminating groups of materials that are not suitable for various reasons. Austenitic 300 series stainless steels containing 7-35% nickel will have most if not all of the boxes checked for being suitable where a stainless steel is desired.
Each family of stainless steels has its strengths and weaknesses. Ferritic stainless steels have useful properties – a lower rate of thermal expansion, higher thermal conductivity, strong ferromagnetism and very high resistance to chloride stress corrosion cracking (SCC). When looking at selecting any alloys, it is important to consider all the factors for successful usage.
The duplex alloys are “problem-solving alloys” for good reason, they have been successfully used in many places where carbon steels and standard austenitic alloys have failed. Just like with the austenitic family, there are many different duplex alloys to choose from, with corrosion resistance varying from moderate with the lean duplex alloys to very high with the superduplex alloys.
The selection of an alloy should be guided by careful examination of the needs of the application. Before making a switch, it’s important to fully investigate an alloy’s strengths, weaknesses and applicability to your structure.
The 4th update of the Nickel Institute’s Safe use of Nickel in the Workplace has been published. It has been revised to help companies using nickel keep up with the latest health and environment knowledge of this resource element which is important for a wide range of applications.
Think of the largest cruise ship. Then imagine how much it weighs – just over 100,000 tonnes, in fact. Now think about 500 of those ships, and what they weigh. That is the staggering amount of new electronic waste that we generate every year.
Even small quantities of nickel in an application can make a big difference to successful deployment.
Nickel-based alloys and nickel-containing stainless are playing key roles in an emerging source of renewable energy known as thermal solar plants or concentrated solar power (CSP). Their use has enabled the industry to overcome challenges in heat transfer and thermal storage technology.
“There’s a mental hurdle to get over of how inherently gross this could be, but we know that this water is safe, and we stand by our process.”
The many new and innovative applications of hydrogen as fuel show great promise for a greener future.
As electric vehicles (EVs) trend from being niche to mass scale and the lines between EVs and their combustion engine (ICE) counterparts get blurred in terms of usability, consumers, automakers, governments and fire departments continue to have some apprehensions.
The present-day principal driver in the Li-ion industry is the large batteries required for electric vehicles. Due to the size of these batteries and the relative growth of electric vehicles it is predicted that the total Li-ion energy capacity will exceed one tera watt-hour by 2030. This anticipation for a dramatically rapidly expanding industry has stakeholders all along the value chain very motivated to be ready.
When Courtney Love wrote this she was not thinking about rockets. It is, however, a perfect description of the history of rocketry. Until the Elon Musk revolution.
The last three months have been unprecedented. But amidst the chaos and despite the drop in global GDP, there has still been a considerable amount of activity in the electric vehicle (EV) and battery world.
Space is hard but nickel makes it possible. The United States of America, through the private company SpaceX, imminently expects to regain its independent way into space.
Ever-tightening sulphur oxide (SOx) emission regulations are increasing the use of marine scrubbers globally. Scrubbers operate in a highly corrosive environment and require the resilience of nickel-containing alloys to prevent failure.
The electric vehicle market is expected to be by far the largest and most dominant market for lithium-ion (Li-ion) batteries. Despite the strong desire to increase EV sales by all involved in the value chain, proliferation has been curbed due to the high cost to the consumer and the perceived disadvantages of owning an EV. Range anxiety, a lack of charging stations and fire safety worries, are among the top concerns.
Most nickel production is destined for stainless steel. But a significant 8% is used in the production of alloy steels which are needed to deliver specific characteristics for specialised and often critical applications.